Most of us probably know what rear spoilers do, but what about rear diffusers? Here's what these often-overlooked components ...

Stellantis has just filled an interesting patent for a retractable, fabric rear diffuser. Rear diffusers are normally fixated to the lower rear portion of a vehicle and work to either improve ...

The competition-spec Ford GT rear aero is designed the FIA/ACO's revised GTE class regulations, which were finalized on Thursday and take effect next year. New rules allow for a moderate power bump, ...

Nearly halfway through its first season in use, NASCAR's Next Gen Cup car has earned good reviews thanks to the quality of racing seen throughout the 2022 season. Week after week, the Next Gen car has ...

Hyundai patents active diffuser tech that extends/retracts for N models, providing race-car downforce without parking issues.

Porsche is now working on an active aerodynamics system that, beyond helping its vehicles carve through the air more efficiently, has the added benefit of hiding or exposing a hitch receiver. First ...

The FIA’s International Court of Appeal has ruled that rear diffusers used by the Brawn GP, Toyota and Williams Formula One teams complied with regulations--and that results from the season-opening ...