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      05-05-2008, 06:45 PM   #2

Drives: 2010 BMW Z4 3.5i 6spd
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Originally Posted by G35Coupe View Post
What would be the ideal widths for a set of 20" HREs? Based on conversations with HRE, I can go up to 20x9 in the front and 20x11 in the back for an E92 M3 coupe, but I think this might be too aggressive. Should I do 20x8.5 F and 20x10.5 R? Would the larger widths severely add to understeer?

I am planning on running Michelin PS2s in 245/30/20 F and 295/25/30 R. Would it looked stretched with a 20x9 F and 20x11 R?

Thanks in advance for your help.
The proper size is 20x9 F 20x10.5 R - that is the spec we are going with for a customers M3 and recommended by HRE as well. 11s will not fit.

20x8.5 F 20x10.5 R is a big width difference and may cause unwanted understeering which might compromise the handling performance.