Countdown
Starting a race car from a stationary position after a countdown. Also known as a standing start or Grand Prix start.
Diffuser
Located in the underbody area of a race car, it uses asymmetric pressure distribution to improve aerodynamics and create a suction effect.
DNF
What does DNF mean? DNF stands for “did not finish,” meaning a driver failed to complete the race.
DNQ
What does DNQ mean? DNQ stands for “did not qualify,” referring to drivers who didn’t qualify to participate in a race.
DNS
The abbreviation DNS stands for “did not start” and is used for drivers who didn’t begin a race.
Downforce
What is downforce? Downforce refers to the force that presses a race vehicle onto the track using rear wings and other aerodynamic components.
Drag
Refers to air resistance – the pressure created when an object moves through the surrounding air.
Drag Reduction System (DRS)
A DRS, such as adjustable rear wing elements, reduces a race car’s air resistance. Typically, DRS can only be activated at specific points on the racing track.