Originally Posted by cdgatti
19 and 20 for that matter, are for pure looks, not performance. For optimizing performance considering overall rim/tire weight and sidewall profile the optimum is 17-18 for a street car. Car and Driver (or MT I forget) did a study and article on this recently. They showed overall performance numbers for the same car (VW something) with 15,16,17,18,19 in wheels/tires. The sweetspot was in the 17-18 range.
Ty! That's what I thought, so which are the lightest 18" OEM wheels for e90?
Would it be a set from the M3?