- Domain
- Power unit
- Era
- Hybrid era, 2026 generation
- Also known as
- boost
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.
More in Power unit
- Control electronics
- Derating
- Energy deployment
- Energy Store
- Engine freeze
- Engine mode
- ERS (Energy Recovery System)
- Exhaust
- Fuel flow limit
- Fuel mixture
- Harvesting
- Hybrid
- Internal combustion engine (ICE)
- MGU-H (Motor Generator Unit — Heat)
- MGU-K (Motor Generator Unit — Kinetic)
- Power unit
- Sustainable fuel
- Token system
- Turbocharger
An undercut is pitting before your rival, then leapfrogging them on fresh tyres while they are still slow on old rubber.