ok this question is for my dad, he has dunlop all round on his 330ci, he needs to replace the front tyres,which are 225/40/zr 18 does he stick with the dunlop cause thats what he has on the rear? or go for somethin else? i no nothin on tyres, and whats best for the 330ci? would appriciate some opinions from you ? dont want budgt either. and not the most expensive..!