TERMINOLOGY

Airbox

The intake above the driver's head that feeds air to the engine — the source of much of the car's distinctive sound.

Anti-roll bar

A sprung bar linking the wheels on an axle that controls how much the car leans in corners — a key tuning tool for balance.

Balance

How evenly a car's grip is shared front-to-rear. A 'loose' car oversteers, a 'tight' car understeers, and drivers chase a neutral balance all weekend.

Ballast

Dense weight added to the car, placed low or wherever needed, to reach the minimum weight and tune balance. Teams build cars light, then add it back.

Bottoming out

When the underside of the car hits the track over a bump or dip, throwing sparks off the skid plank and briefly unsettling the car.

Brake bias

The front-to-rear split of braking force, adjustable by the driver from the cockpit to suit the corner, the fuel load and tyre wear.

Brake duct

A scoop that channels cooling air over the brakes (and, through it, the wheel) to manage their temperature through a race.

Brake-by-wire

An electronic system that blends the rear brakes with energy recovery, so braking force stays consistent while the hybrid harvests energy. Software, not a direct cable, controls it.

Camber

The slight inward lean of a tyre at the top, set so more rubber touches the road through a corner.

Carbon brakes

Brake discs and pads made from carbon-fibre composite that withstand the extreme heat of repeated heavy braking. They work best once hot.

Clutch

The device connecting engine to gearbox, used mainly at the start; a driver works it with a hand paddle for a fast getaway. The rest of the time shifts are clutchless.

Differential

A geared device that lets the two rear wheels turn at different speeds through a corner while sharing engine power. Its setting affects traction and stability.

Fuel tank

The single sealed bladder, set behind the driver, that holds the race fuel. Refuelling during a race has been banned since 2010, so it must carry a full race load.

Gearbox

The eight-speed semi-automatic transmission that sends engine power to the rear wheels. Drivers change gear with paddles on the steering wheel.

Lock-up

When a driver brakes so hard a wheel stops turning while the car is still moving, scrubbing a flat patch onto the tyre and sending up a puff of smoke. It costs braking and lap time.

Mechanical grip

The grip that comes from the tyres, suspension and weight of the car rather than from aerodynamics — it matters most in slow corners.

Monocoque

The single-piece carbon-fibre survival cell that forms the car's central structure and protects the driver. The engine, suspension and nose all bolt onto it.

Nosecone

The detachable tip of the car that carries the front wing and forms the front crash structure; it is swapped quickly if damaged.

Oversteer

When the rear tyres lose grip before the fronts, so the back of the car steps out and tries to overtake the front. Thrilling to watch, hard to catch.

Paddle shift

The pair of levers behind the steering wheel a driver flicks to change up or down a gear, with no clutch pedal. It keeps both hands on the wheel.

Plank

A wooden skid block fixed under the floor whose wear is measured after the race to police a minimum ride height. Excessive wear means disqualification.

Power steering

Hydraulic assistance that lightens the heavy steering loads of a downforce-laden car while keeping feel. It reduces driver fatigue over a race.

Pushrod and pullrod

Two ways of linking a wheel to the car's springs and dampers — the small rod either pushes or pulls — that shape the suspension and the bodywork around it.

Ride height

How high the car's floor sits above the track, a setup choice that trades downforce against the risk of the floor grounding. Lower is usually faster but riskier.

Setup

The package of adjustable settings — wings, suspension, differential, tyre pressures — a team dials in to suit a circuit and conditions. Finding the right setup is half the job.

Sidepod

The bodywork either side of the cockpit that houses the radiators and ducts cooling air through the car; its shape is a big aerodynamic battleground.

Snap oversteer

A sudden, sharp loss of rear grip — often when a driver lifts off the throttle mid-corner — that flicks the car sideways with little warning.

Steering wheel

The driver's command centre, packed with buttons, dials and a display to adjust the car and read information. A modern wheel can cost as much as a road car.

Suspension

The arms, springs and dampers linking each wheel to the chassis, controlling how the car rides bumps and kerbs. Its setup strongly affects handling.

Telemetry

The stream of live data — speeds, temperatures, pressures — sent from the car's sensors to the team, used to monitor the car and guide the driver. Engineers read hundreds of channels.

Traction

How well a car turns engine power into forward motion without the rear tyres spinning, especially on the way out of a slow corner.

Trail braking

Carrying a little brake pressure past the turn-in point to keep weight over the front tyres and help the car rotate into the corner.

Understeer

When the front tyres lose grip before the rears, so the car runs wide and won't turn in as sharply as the driver asks. Commentators call it 'push'.

Wheel gun

The pneumatic gun a pit crew uses to undo and tighten the single wheel nut in a fraction of a second during a stop.

Active aero

Driver-adjustable front and rear wings, introduced for 2026, that flatten on the straights to cut drag and add downforce in the corners. They replaced the fixed-zone DRS.

Bargeboard

Flow-conditioning panels once fitted along the car's sides to tidy airflow toward the floor and rear. They were largely banned from 2022 to help cars race more closely.

Clean air

Undisturbed air ahead of a car with no rival directly in front, giving full downforce and the best grip. A leading car in clean air can often pull away.

Diffuser

The upswept section at the rear of the floor that expands the underbody airflow, increasing the suction that creates downforce. A better-sealed diffuser means more rear grip.

Dirty air

The turbulent wake left behind a leading car. A following car loses downforce in it, making it harder to corner closely and to overtake.

Downforce

Aerodynamic load that presses the car onto the track, giving the tyres more grip for cornering. Wings and the floor generate it as airflow speeds up around the car.

Drag

The air resistance that slows a car along a straight. Bigger wings make more downforce but also more drag, so teams trade cornering grip against top speed.

DRS (Drag Reduction System)

A driver-operated rear-wing flap that opened in designated zones to cut drag and aid overtaking, allowed only when within one second of the car ahead. It was replaced by movable Active Aero for 2026.

DRS train

A line of cars each close enough to use DRS on the car ahead, so the drag-reduction boost cancelled out along the queue and nobody gained a clear advantage. The effect ended when DRS was retired after 2025.

DRS zone

A designated stretch of track, usually a straight, where a chasing driver within one second could open the DRS flap to attack. The zones were retired when DRS ended after 2025.

Floor

The large underbody panel that produces most of a modern F1 car's downforce by managing airflow beneath the car. Since 2022 the floor, not the wings, is the main grip source.

Front wing

The wing across the nose that makes downforce at the front and steers airflow around the rest of the car. Teams adjust its angle to balance how the car turns.

Ground effect

Downforce made by shaping the car's floor into tunnels that speed airflow underneath, lowering pressure and sucking the car onto the track. F1 reintroduced floor-based ground effect with the 2022 rules to let cars follow more closely.

Gurney flap

A small lip fixed to the trailing edge of a wing that adds a little extra downforce for its size. It is named after the racer Dan Gurney.

Porpoising

A rapid up-and-down bouncing of a ground-effect car at high speed, when the floor briefly loses and then regains downforce. It troubled several teams when the 2022 regulations arrived.

Rake

Running the car nose-down, with the rear higher than the front, to work the floor harder and make more downforce.

Rear wing

The wing mounted at the back that generates downforce over the rear axle for traction and stable braking. Trimming its angle trades cornering grip for straight-line speed.

Slipstream

Following closely in another car's wake, where the disturbed air offers less resistance, letting the chaser gain speed on a straight. Drivers use it to set up an overtake.

Venturi tunnels

Shaped channels under the floor of the modern (2022-on) cars that speed up airflow to suck the car to the road — the return of ground effect.

Vortex

A controlled spiral of air shed off the wings and bodywork to steer the airflow where designers want it — invisible plumbing for downforce.

Wing stall

When airflow over a wing breaks away and downforce suddenly drops — the principle behind DRS, which deliberately stalls the rear wing to cut drag.

Control electronics

The standardised electronic control unit that manages the power unit and energy systems, supplied to every team. Using common hardware limits hidden software advantages.

Derating

When a car's deployable electrical energy ran out partway down a long straight, the hybrid boost faded and the engine pulled alone. Drivers managed deployment to avoid it at key moments.

Energy deployment

How and when a driver releases stored electrical energy for a power boost around a lap. Good deployment maximises speed where it counts, such as before an overtaking spot.

Energy Store

The battery pack that stores the electrical energy recovered by the hybrid system, ready to be deployed as a power boost. Regulations cap how much it can hold and release per lap.

Engine freeze

A rule that locked power-unit designs from further development for a set period, holding performance steady to save money. It ran across the seasons before the 2026 rules.

Engine mode

A software setting that changes how much power and energy the engine delivers — a high 'mode' for overtaking or qualifying, a conservative one to save the car.

ERS (Energy Recovery System)

The hybrid system that harvests energy and redeploys it as an electric power boost. From 2014 to 2025 it combined the MGU-K (braking energy) and the MGU-H (turbo heat energy).

Exhaust

The pipework that channels burnt gases out of the engine, also spinning the turbocharger on the way. Where it exits the car is tightly controlled by the rules.

Fuel flow limit

A regulatory cap on how fast fuel can be delivered to the engine, measured by a mandatory sensor. It stops teams chasing power through ever-higher fuel consumption.

Fuel mixture

How rich or lean the engine is run: a richer mixture gives more power but burns more fuel, a leaner one saves it. Drivers are often told to change it by radio.

Harvesting

Storing electrical energy into the battery — recovered under braking (MGU-K) and from the turbo (MGU-H) — to be deployed again later in the lap.

Hybrid

The combination of a petrol engine with electric energy recovery that has defined F1 power since 2014. It boosts performance while using less fuel than the engines before it.

Internal combustion engine (ICE)

The 1.6-litre V6 turbocharged petrol engine at the heart of the power unit, working alongside the hybrid systems. It is often shortened to ICE.

MGU-H (Motor Generator Unit — Heat)

The unit that recovered waste heat energy from the turbocharger and converted it to electrical energy for the ERS. It was abolished for the 2026 power-unit rules.

MGU-K (Motor Generator Unit — Kinetic)

The motor generator that recovers kinetic energy under braking and stores it, then redeploys it as an electric power boost. It is the part of the ERS carried over into the 2026 rules.

Overtake mode

An extra burst of electrical energy a chasing driver can deploy to attack, introduced with the 2026 power-unit rules. It is part of the package replacing DRS.

Power unit

F1's name for the complete propulsion package: the turbocharged engine plus its energy-recovery and storage systems. The term replaced 'engine' when hybrids arrived in 2014.

Sustainable fuel

A fully sustainable fuel, made from non-food or carbon-capture sources rather than fossil crude, mandated for the 2026 power units. It aims to cut the sport's carbon footprint.

Token system

A development-currency scheme that once limited how many parts of an engine could be changed each season to control costs. It applied to power units in the mid-2010s and was later dropped.

Turbocharger

A turbine spun by the engine's exhaust gases that drives a compressor, forcing more air into the engine for extra power. F1's hybrid era pairs it with energy recovery.

Blistering

Tyre damage where the rubber overheats internally and chunks break away from the surface. Unlike graining it does not recover, so the tyre stays compromised.

C1–C5 compounds

Pirelli's naming for its dry-weather slick rubber, from the hardest (C0/C1) to the softest (C5). Three of them are chosen for each race weekend.

Compound

The specific rubber recipe of a tyre, ranging from soft (fast but short-lived) to hard (durable but slower). The supplier brings a selection to each race.

Degradation

The gradual loss of tyre performance over a stint as the rubber wears and overheats, slowing lap times. Managing it is central to race strategy.

Delamination

A failure where a tyre's tread strip peels away from the carcass beneath, usually without warning. It differs from ordinary wear and can end a stint instantly.

Flat-spot

A worn flat patch on a tyre caused by locking the wheel under heavy braking, which then sets up a vibration. A bad flat-spot can force an early pit stop.

Graining

Tyre wear where a too-cold surface slides and rolls rubber into small beads, costing grip. It can clear if the driver manages temperature and works the rubber back in.

Intermediate

A lightly grooved tyre for a damp or drying track, bridging the gap between slicks and full wets. Its tread clears some water while keeping reasonable grip.

Marbles

Bits of worn tyre rubber that gather off the racing line, where they offer almost no grip. A driver who runs wide onto them can slide.

Scrubbed tyre

A tyre run for a lap or two to wear off its shiny new surface, then set aside for race use. Teams prepare scrubbed sets to reduce graining later on.

Slick

A smooth, treadless dry-weather tyre whose full rubber surface maximises grip. F1 runs slicks in a range of compounds from soft to hard.

Soft, medium and hard

The three dry tyres picked for a given weekend, colour-coded red (soft — fastest but shortest-lived), yellow (medium) and white (hard — most durable).

Thermal degradation

Grip lost because a tyre is run too hot rather than worn out — its surface 'gives up' until it cools back into its working range.

Tyre allocation

The fixed set of tyres each driver is given for a weekend, with rules on how many of each compound and when they must be handed back. It shapes how teams use practice.

Tyre pressure

The air pressure inside a tyre, set within mandated minimum limits; it affects grip, wear and the tyre's working temperature. Teams fine-tune it for each session.

Tyre warmer

An electric blanket wrapped around a tyre to pre-heat it before use, so it reaches its working temperature sooner. Teams fit them in the garage and on the grid.

Wet tyre

A deeply grooved tyre for heavy rain that channels large amounts of water away to resist aquaplaning. It is the slowest but safest tyre in a downpour.

Working window

The temperature range in which a tyre delivers its best grip; too cold and it slides, too hot and it degrades. Keeping tyres in the window is a constant driver task.

Box

The radio call telling a driver to come into the pit lane to stop, from the German 'Boxenstopp'. 'Box, box' means pit this lap.

Delta time

A target lap time a driver is asked to hit, shown as how far ahead of or behind a reference pace they are. Teams use deltas to manage fuel, tyres or a safety-car run.

Double-stack

Pitting both team cars on the same lap, one right behind the other, so the second driver waits while the first is serviced.

Flying lap

A flat-out timed lap with the car already up to speed — what a driver sets in qualifying, as opposed to the slower out-lap and in-lap either side of it.

Free stop

A pit stop made while the race is neutralised (safety car or virtual safety car), when everyone else is going slowly, so it costs far less time than a green-flag stop.

Fuel saving

Managing the throttle and engine settings to use less fuel than the flat-out rate, so the car reaches the flag within its fuel limit. It can cost lap time.

In-lap

The lap a driver completes on the way into the pits, pushing to bank time before the stop or to reach a pit window. It precedes the stop.

Lift-and-coast

Easing off the throttle before the braking point and coasting into a corner to save fuel, energy or brake and tyre wear. Drivers do it to make a strategy work.

Offset

A deliberate difference in tyre age or compound between a driver and a rival, created so one has fresher rubber later in the race. It sets up an attack or a defence.

One-stop

A race plan built around a single pit stop, trading pace for fewer stops by nursing the tyres. It works when tyre degradation is low.

Out-lap

The lap straight after leaving the pits on fresh tyres, used to build heat and speed before a flying lap or to resume racing. The tyres are not yet at full grip.

Overcut

A strategy where a driver stays out on older tyres while a rival pits, banking quick laps in clear track, then pits later to emerge ahead. It is the mirror image of the undercut.

Pit wall

The team's command post on the wall facing the pit lane, where senior engineers and strategists watch the race and make the calls. It is the strategy nerve centre.

Pit window

The range of laps in which stopping makes strategic sense, set by tyre life and traffic. Teams watch for the moment a rival enters or leaves their window.

Stint

A continuous run of laps on one set of tyres, between the start or a pit stop and the next stop. Strategists plan a race as a sequence of stints.

Strategy crossover

The point where a different tyre or stop plan nets a driver ahead of a rival — the moment an undercut or overcut actually pays off on track.

Team orders

Instructions from the pit wall asking drivers to hold station or let a team-mate past, usually to serve the team's best result. They are legal but often controversial.

Team principal

The person who runs a team, responsible for its sporting and often commercial decisions. They lead from the pit wall on race day.

Tow

The slipstream pull of running close behind another car down a straight — a driver who gets a 'tow' is dragged along in the lead car's wake.

Track evolution

The way a circuit gets faster across a weekend as cars lay down rubber and sweep it clean, so lap times tumble even if nothing else changes.

Track position

The advantage of simply being ahead on the road, which can be worth more than raw pace when overtaking is hard. Strategy often aims to protect it.

Two-stop

A race plan with two pit stops, allowing harder pushing on fresher tyres at the cost of more time spent stopping. Teams weigh it against a one-stop.

Tyre management

Driving to preserve the tyres — smoothing inputs and easing through corners — so they last longer and a planned strategy holds. It often means lapping below the car's outright pace.

Undercut

A strategy where a driver pits before a rival and uses fresh tyres to lap quicker, aiming to emerge ahead once the rival also stops.

Backmarker

A driver running near the back of the field, whether or not they have been lapped. Leaders catch and must pass them through traffic.

Black flag

Shown with a car's number to order that driver to stop at the pits immediately — they have been excluded from the race.

Black-and-white flag

A split black-and-white flag shown with a number is a single warning for unsporting driving — the last word before a penalty.

Blue flag

A flag shown to a slower car about to be lapped, telling it to let the faster, leading car through promptly. Ignoring it draws a penalty.

Chequered flag

The black-and-white chequered flag waved at the finish line to signal the end of a session or race. Crossing under it completes the race.

Clean and dirty side

The two sides of the starting grid: the racing-line side is rubbered-in and grippy (clean), the other side is dusty and slower off the line (dirty).

Cool-down lap

The slow lap after the chequered flag, used to bring temperatures down and gather the car back to the pits or parc fermé.

DNF (did not finish)

A car that retired before the end through crash, failure or damage. It still appears in the results, ranked behind the finishers.

DNS (did not start)

An entry that qualified or was due to race but did not take the start, through damage or a failure on the way to the grid.

Drive-through penalty

A penalty requiring a driver to pass slowly through the pit lane without stopping, costing time but not a place directly. It is served during the race.

Formation lap

The lap completed before the start, when cars leave the grid, weave to warm tyres and brakes, then return to their slots for the lights. Also called the parade lap.

Grand Prix

The name for a championship Formula 1 race, French for 'grand prize'. A season is a series of grands prix in different countries.

Green flag

Waved to tell drivers the track is clear and racing is on again after a hazard has been removed.

Grid

The staggered arrangement of starting positions, set by qualifying, where cars line up for the start. Pole sits at the front.

Interval

The time gap between two cars on track, shown on timing screens as the seconds separating them. A shrinking interval means a chase is on.

Jump start

Moving before the lights go out at the start — detected by sensors on the grid and punished, usually with a time or drive-through penalty.

Lapped car

A car the leader has passed to put a full lap between them, shown a blue flag to let the faster car by. Being lapped is about race distance, not grid pace.

Lights out

The moment all five red start lights are switched off to begin the race. Drivers react to the lights going out, not to a count.

Meatball flag

A black flag with an orange disc, shown with a number, ordering a car to the pits because it has a mechanical problem or damage that makes it unsafe.

Pit lane

The lane beside the main straight where cars stop for tyres and repairs, governed by a strict speed limit. The teams' garages open onto it.

Pit limiter

A button-activated speed cap that holds the car to the pit lane's mandatory speed limit so the driver can't accidentally speed in the pits.

Pit stop

A planned stop in the pit lane where the crew changes tyres and makes adjustments in a few seconds. It is a core part of race strategy.

Podium

The post-race ceremony and raised platform for the top three finishers, where trophies and anthems are presented. To 'finish on the podium' means placing in the top three.

Pole position

The first place on the starting grid, awarded to the fastest qualifier. It offers the cleanest line into the first corner.

Qualifying

The timed session before the race that sets the grid order, run as three knockout segments (Q1, Q2, Q3) that eliminate the slowest cars. The fastest time takes pole.

Reconnaissance lap

A lap driven from the garage to the starting grid before the race, letting drivers check the track and reach their grid slot. Several are allowed, and they come before the formation lap.

Red flag

A flag that stops the session immediately, shown when the track is unsafe — a heavy crash or extreme weather. Cars return to the pit lane to wait.

Rolling start

A start where the field is led around by the safety car and accelerates away from a moving formation, used in the wet, rather than from a standing grid.

Safety car

A road car that leads the field at a reduced, controlled speed after an incident, bunching the cars together until the track is safe to race again.

Sector colours

On the timing screens, a lap split into three sectors coloured green (a personal best), or purple (the fastest of anyone in the session).

Sprint

A short race, around 100 km, held on some weekends to set part of the points and add Saturday action. It was introduced in 2021.

Standing start

A race start from a stationary grid, cars holding position until the five red lights go out. It contrasts with a rolling start behind the safety car.

Stop-go penalty

A penalty where the driver must come into the pit box, stop for a set time with no work done on the car, then rejoin — costlier than a drive-through.

Unsafe release

Letting a car go from a pit stop into the path of another car or with a loose wheel — a penalty because it puts others at risk.

Virtual safety car (VSC)

A neutralisation that holds every car to a set delta time without deploying a physical safety car, used for hazards that can be cleared without bunching the field.

White flag

Warns drivers that a much slower vehicle — a recovery truck, medical car or stricken car — is on track ahead.

Yellow flag

A caution flag warning of a hazard ahead, such as a stopped car; drivers must slow and may not overtake in that zone. Double-waved yellows mean be ready to stop.

107% rule

In qualifying, a car must lap within 107% of the fastest Q1 time to be allowed to start — a minimum-pace safety net.

Classified

A finishing status given to a car that completed at least ninety per cent of the winner's distance, so it appears in the results even if it stopped near the end. Below that it is unclassified.

Concorde Agreement

The confidential commercial contract binding the teams, the FIA and the sport’s owners — it sets how F1 is run and how its money is shared.

Constructors' Championship

The team title, decided by adding the points scored by both of a team's cars across the season. It carries major prize money.

Cost cap

An annual limit on how much a team may spend on car performance, introduced in 2021 to level the field and rein in runaway budgets. Breaches bring penalties.

Curfew

Overnight hours during a race weekend when team staff are barred from working on the cars, to protect mechanics from being worked around the clock.

Drivers' Championship

The individual title, won by the driver with the most points at the end of the season. It is the sport's headline prize.

DSQ (disqualified)

Removal from the results for a rule breach, such as failing inspection or a technical infringement. The driver loses all points scored that day.

Fastest lap point

A bonus point awarded to a driver who set the race's fastest lap while finishing in the top ten. It applied from 2019 and was dropped for 2026.

Grand slam

A driver taking pole, leading every lap, winning the race and setting the fastest lap in one event — a rare clean sweep. It is also called a grand chelem.

Grid penalty

A punishment that drops a driver a set number of places on the starting grid, often for changing too many power-unit parts. It is served at the next race.

Minimum weight

The lowest weight, including the driver, that a car is allowed to be, checked on a weighbridge. Cars are built under it, then ballasted back up.

Parc fermé area

The fenced enclosure where cars are held after qualifying and the race for officials to inspect them, separate from the team garages. It is the physical place, not the no-changes rule.

Penalty points

Marks added to a driver's licence for on-track offences; collecting twelve within a year triggers a one-race ban. They expire after twelve months.

Points system

The scoring scheme awarding the top ten finishers points, from 25 for a win down to 1 for tenth, toward the championships. The totals decide the titles.

Protest

A formal complaint a team lodges with the stewards, challenging another car's legality or a result. The stewards investigate and rule.

Right of review

A formal request a team can make for the stewards to reconsider a decision if significant new evidence comes to light.

Scrutineering

The technical inspection in which officials check each car obeys the rules on dimensions, weight and safety before it can race. Failing it can mean exclusion.

Sprint shootout

The short, separate qualifying session that sets the grid for a Sprint race on Sprint weekends.

Steward

One of the senior officials who judge incidents during a weekend and hand out penalties for rule-breaking. A panel of stewards rules on each event.

Super Licence

The top-level racing licence a driver must hold to compete in F1, earned through results in junior series and a points threshold. It gatekeeps the grid.

Technical directive

A clarification issued by the FIA explaining how a rule will be interpreted or policed, guiding teams between formal rule changes. They can reshape competition mid-season.

Time penalty

Seconds (typically 5 or 10) added to a driver during a race — served at their next stop or added to their final race time.

Track limits

The rule that a car must keep within the white lines marking the track edge; running wide can void a lap time or draw a warning. Repeat offences bring penalties.

Barrier

Energy-absorbing trackside walls — such as TecPro blocks or tyre stacks — built to cushion a crashing car and protect spectators. They line the highest-risk corners.

Crash structure

Deformable sections built into the nose and around the car to crumple on impact and absorb energy away from the driver. They must pass strict crash tests.

Debris

Loose pieces of car or track scattered after contact or a failure, a hazard that can puncture tyres or cause crashes. Marshals clear it, often under a yellow flag.

Gravel trap

A bed of gravel beside a corner designed to slow a car that has run off and bog it down before it reaches the barriers. It is a passive run-off.

Halo

The curved titanium bar arching over the cockpit to protect the driver's head from debris and impacts. It became mandatory in 2018 and has saved several lives.

HANS device

A head-and-neck support, worn over the shoulders and clipped to the helmet, that stops the head snapping forward in a crash. It is compulsory.

Helmet

The carbon-and-composite head protection a driver wears, built to survive severe impacts and fitted with a fireproof visor. It meets strict FIA standards.

Marshal

A trained trackside volunteer who waves flags, clears debris and helps stranded cars and drivers. Marshals are the race's first responders.

Medical car

A high-performance car carrying a doctor that follows the field on the opening lap, ready to reach any accident in seconds. It waits in the pit lane thereafter.

Nomex

The fireproof fabric used for drivers' overalls, gloves and underwear, able to resist flames long enough for an escape. The whole kit is fire-rated.

Run-off

The paved or gravel area beyond the track edge that gives a car leaving the circuit room to slow safely. Tarmac run-off lets drivers rejoin; gravel usually does not.

Safety harness

The six-point belt system that straps a driver firmly into the seat, spreading crash loads across the body. It must be quick to release for an escape.

Apex

The point on the inside of a corner a driver aims to clip to take the smoothest, fastest line. Hitting the apex well sets up the exit.

Astroturf

The strip of artificial grass laid beside a kerb to discourage drivers from running wide — slippery when a tyre catches it.

Banking

A corner built with the track surface sloped inward, helping cars hold higher speeds through the turn. It is rare on modern F1 circuits.

Braking zone

The stretch before a corner where a driver brakes hard to scrub off speed, and a prime place to attempt an overtake. Late braking can win or lose a position.

Chicane

A tight, quick left-right (or right-left) sequence of corners inserted to slow cars down, often before a fast section. It rewards precise placement.

DRS detection point

A line on the track where the gap between cars is measured: within a second, the chasing driver gets DRS in the zone that follows.

Esses

A flowing series of linked left and right corners taken in quick succession, demanding rhythm and commitment. They test a car's change of direction.

Hairpin

A very tight, slow corner that doubles the track back on itself, taken in a low gear. It is a classic overtaking spot under braking.

Kerb

The raised, often striped edging at the inside and exit of corners marking the track limit. Drivers ride them for the best line, but too much unsettles the car.

Paddock

The enclosed area behind the pits where teams base their motorhomes and hospitality, and where personnel and guests gather. Access is tightly controlled.

Pit straight

The main straight that runs past the pit lane and the start-finish line, where the grid forms and the race begins and ends. It usually hosts an overtaking zone.

Racing line

The fastest path around the lap, linking the corners through their apexes to carry the most speed. Drivers fight to take or defend it.

Sausage kerb

A raised ramp-like kerb on the exit of a corner, placed to stop drivers cutting it — hitting one can pitch a car into the air.

Sector

One of three timed segments a lap is divided into, used to compare where drivers gain or lose time. Marshals also use them to localise incidents.

Straight

A flat-out section of track between corners where cars reach top speed. The longest straights are key overtaking spots.

Street circuit

A track laid out on closed public roads rather than a purpose-built venue, with walls close to the edge and little run-off. Monaco is the most famous.

Tarmac

The asphalt surface of the track and run-off areas; its grip changes with temperature, rubber build-up and age. A freshly laid surface is called green.

Turn

A numbered corner on the circuit; tracks label them Turn 1, Turn 2 and so on for reference. Commentators and engineers use the numbers to pinpoint the action.