I only ran the AD08's on my 18" track rims and ran S Drives on my 19" oz racing rims.
My 19's on the M3 will be for daily driving and the stock 18's will get wrapped in something sticky for the track, racewars, etc.
I am now hearing stories from some of the M3 owners who have installed a supercharger. They all say I should be going with 19" x 11" rims in the rear to enable running like a 305 rear.

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Funny looking German Subaru