Explains center bore, ET, PCD, also shows wheel bolt sizes etc., about 70 car brands and 1700 wheel types http://www.wheel-fitment.com/index.html
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Explains center bore, ET, PCD, also shows wheel bolt sizes etc., about 70 car brands and 1700 wheel types http://www.wheel-fitment.com/index.html
and here all BMW factory wheel style http://www.bmwstylewheels.com/
I usually go to wheel-fitment.com and wheel-size.com for detailed specs of various factory wheels.