ST's are very slow in standard form, wouldnt worry too much about them.
My friends gt4 is defenately quicker off the mark than my S3. Pulls harder in first and 2nd but seems to tail off very quickly through the gears. Once rolling the S3 has the edge easily and his is 327bhp.
Im yet to have a go against my friends Silvia though. Aparently 350bhp. I think he feels the need to beat a "quick" Audi.
Dont really get many encounters, not in a rush to race joe public. Love the torque of the mapped S3 though, 4th gear from 40mph up to well over the speed limit takes no time, very impressive.