respost but nice.
A GT3 997(mk1, 415BHP, no DFI) runs from the M3 more than the M3 runs from the RS4 in this vid.
There is a vid at m5board. The 997 GT3( also rather keeps up (okay about 50 meters) with the RS6 biturbo 580hp(same M5board).
997GT3 there is only one substitute: 430 Scuderia.
