Stephan Reil, director of technical development at quattro GmbH (Audi's performance tuning division), is the man largely responsible for the RS 4's driving character. He told us Audi benchmarked cars like the M3 CSL and Porsche 911 Carrera 4S when developing the RS 4.
Notice who the benchmarks are and who is trying to emulate them? Nuff said.