The diffuser is a chunk of bodywork low on a car’s rear end, usually shaped to manage airflow, improve aerodynamics, and—let’s be honest—look bitchin’. Bugatti’s new Tourbillon super-coupe’s massive ...

How does a rear diffuser work on a car? What is the purpose of a diffuser? In this video I explain the science behind ...

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 ...

A red Porsche 992 GT3 RS is photographed from the rear three-quarter angle, highlighting its oversized swan-neck rear wing, ...

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, ...

Porsche isn’t the first brand to come to mind when you think of towing but a surprising amount of Cayenne owners do actually tow with their SUVs. How else are they supposed to get their 911 GT3 RS to ...

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 ...