Bugger, so close! It's an absolutely fantastic car, and the way it piles on the speed in 3rd whilst remaining utterly planted gives you so much confidence even on *spits* runflats, and yet I just didn't connect with it like I should have. It's sounds weird to say it but I genuinely loved the M3, and yet it left me cold. Very strange. I can see why people do buy them though, as they do everything so very well.
It is indeed RWD, it's the C4 and C4S and Turbo that are 4WD.
Luckily you can get both RE050As (on my car) and even better PS2s in N-spec, so there'll be no mixing or compromising of tyres for me!