Jul 21, 2011 · Here is what I have recently learned from the wheels and offsets of these cars. The stock RS5 has a 228.6mm (9") wide rim. With a stock offset of 26mm, it would mean the face of the wheel (half the rim's width, 4.5" which is 114.3mm MINUS et 26mm) is 88.3mm or 3.48" away from the hub's mounting surface.
The RS5 actually shares the same core V6 TFSI® engine found in the Audi S5, but other differences give it a ~100 horsepower ( 444 hp vs 349 hp) advantage. The RS5’s engine has two turbos instead of one and a different bore which makes it a 2.9-liter (as opposed to the Audi S5’s 3.0-liter) engine. The additional turbocharger means each . 353 7 436 557 582 471 750 194