20k: Quattrollin: 2001 Audi S4 B5; RS4 look 550hp
The B5 generation Audi S4 was introduced in 1994 and featured a longitudinally mounted engine mated to a front transaxle with optional quattro all-wheel-drive. The hottest version released to the US market was the twin-turbo equipped S4 and it was in this generation that Audi started to legitimately challenge BMW in the compact luxury sports-sedan […]