Hi,
I've had the pleasure of driving a mate's "regular" (er, has remap, induction & exhaust mods) RS & was really impressed with the way that Ford engineers have been able to control the torque steer of this FWD motor.
I still prefer the Renault Megane R26.R though - do a search, it's just bonkers - reminds me of my Renault Clio Williams ..... ahhhhh ...
This makes interesting reading :
Focus RS500 v Clio Cup - Autocar.co.uk
G