the profile of the tyre imo is important in getting the correct look, obviously combined with the width. on my wheels i made sure i got as wider front tyres as possible so that they wouldnt look stretched and would match up with the rears properly which are pretty big. i still think the 295's at the back are the tiniest bit stretched looking and im really tempted to go 305 for the next set, either that or see what oterh brands look like as the vredestines have a very rounded shoulder.
that is something to bear in mind, different brands have different shapes