As person come from astra vxr,with 280 hp,mechanical diff,and brembo 345 mm brakes, to 7.5 gti non pp, golf do not need diff, our bigger brakes, golf have such sweet chasis, balanced,and lot of grip,and no matter how hard you drive it, very rarly,our never i feel i miss diff,golf pp just do not make sense, if perfomace are in question, then there is just one Golf r, other just can be only golf gti non pp, and 7.5 is just more beatiful then 7