Still the iteration by which all others are measured, Audi's second RS4 surprised us all with its exceptional engine and ...
Built between 2006 and 2008, the critically acclaimed B7 RS4 was Audi’s answer to the E92 BMW M3 and the W204 C63 AMG. Powered by a 4.2-liter naturally aspirated V8 FSI unit, the RS4 made use of 420 ...