Originally Posted by b1aze
Plenty of people have fit 275/35/18 Michelin Pilot SS on the rear with a 18x9.5 ET58/62 from Apex in the EC-7 and ARC-8 wheel models. I have been told that, if you have the right offset wheel, you could even go 18x10 and get a 285 in there, but then wheel diameter differences start to get a little screwy.
I have Apex Arc 8's and last season ran 275/35-18 PSS rear, this season am running 285/30-18 AD08's. Both work fine even on the 9.5" wheel width, but as listed in the forums, the 285's are closer to the right diameter, which I think is part of the reason I prefer them.
However, with VMR's you're looking at 245 rear max. It's just the wrong offset to fit rubber.