The rear section of the car's floor or undertray where the air flowing under the car exits. The design of the diffuser is crucial as it controls the speed at which the air exits. The faster its exit, the lower the air pressure beneath the car, and hence the more downforce the car generates.
The aerodynamic force that is applied in a downwards direction as a car travels forwards. This is harnessed to improve a car's traction and its handling through corners.
The aerodynamic resistance experienced as a car travels forwards.
One of two penalties that can be handed out at the discretion of the Stewards whilst the race is still running. Drivers must enter the pit lane, drive through it complying with the speed limit, and re-join the race without stopping.