I was quite disappointed with the way my cupra crashed over road humps, I checked the pressures and found them to be correct but thought the recommended pressures a bit high. My previous car was a mondeo 220st which has a kw of 1490kg but its tyre pressures are 2.3(f) and 2.1(r). I immediately reduced mine to those and the cupra is much improved now. Not sure whether to go lower still.
Theres a guy on
you tube (xthilox) who spends his time racing around the nurburgring (very well I should say!) with a modified cupra
280 and he uses 2.3 all round.