hi pal ive just sold a st170 there a really nice car to drive the suspention is lower than a standard focus so they handle well they also have much better brakes than a standard model too for sure mine wasnt very quick on the 0 to 60 time around 7.5 ish on a good day and it was heavy on fuel for what it was really my friend had a st225 and it was a lot quicker evan standard 0 to 60 it was really nice but i still preferred my st170 to drive as im not a fan of the mk2 focus it feels bigger i like the size of the mk1 focus myself its kinda like astra to vectra if you get what i mean both good cars but id have a astra over a vectra any day if i had the choice my mate played with his st225 he got a front mount exhaust remap wolf filter etc it was on the good side of 300 bhp then so it was in another league to my 170 no point evan trying in the dry so for tunability the st225 wins everytime im afraid
im not tryin to upset anyone here this is just my personal opinion hope it helps you