and has gone to extreme lengths to transform a workaday Audi 90 into the IMSA GTO version of that car. Not wanting to go the stripe-and-bodykit route, this Audi's flares were painstakingly ...

paying homage to the iconic Audi 90 Quattro IMSA GTO race car. The RS6 Avant GT gains a retuned 4.0-liter twin-turbo V8 ...

The limited-run model pays tribute to the iconic Audi 90 Quattro IMSA GTO race car. Audi has tweaked the car’s 4.0-liter twin-turbo V8 to deliver 621 hp and 627 lb-ft. Few super estates get ...

citing the fire-spitting 700bhp IMSA/GTO Audi 90 quattro as the true grandfather of the five-cylinder engine seen in the current TT RS. The new Porsche 911 Carrera S accelerates faster than a GT3 ...