The GT4RS is a tad faster in a straight line than the 991.1 GT3 (+20HP) but only manages at laptime of 1:46. This driver continuously overbrakes into each turn, also creating a hazardous situation for those behind. It is much better to let a faster car by rather than blocking the line in a situation like this. Notice other slower cars being aware and letting traffic by. A couple of laps later I manage a 1:37... 9 seconds quicker than the GT4RS. An alternate method of choosing runs groups is to sort by reported lap time rather than "self reported" skills. This method also limits speed differential.