I do like the M Coupe (on the Z3) - sort of MGB GTV8 on steroids! But, they do have a few problems - the biggest being a diff carrier that wasn't strong enough... Not to say Boxsters don't have any, of course! 'Fraid the Z4, though a better car from driveablility point of view, leaves me cold...
Dave, at that width, on those rims/tyres there's approx 1" between outside of sidewall and wheelarch each side. So overall add two inches for body width...
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Graham (G4FUJ)
B3808 RTA 51R '76 4/4 Ivory 2 seater
'08 MINI Clubman Cooper D; '90 Defender 90 SW