Originally Posted by Nick@Jlevi SW
The Fronts are an 18x8.5 ET40 and rears are an 18x9.5 ET22, ET33 or ET45. I'd recommend the ET22 for the E92 M3.
These are about 24-25lbs per wheel and they are hub centric.
Thx for the info. A better fitment for the fronts would be that +20mm you have listed for an e60 5-series. That combined w/the +22mm rear would be a good combo for $750 + shipping.
However, these ASA JH8's (hubcentric) would be cheaper ($456 or $576 + shipping) but unfortunately Tire Rack list them as limited availability due to closeout:
I think your only options for low-cost wheels are:
1) Look in the For sale forum and eBay for e9x M3 owners selling their oem 18" wheels & MICHELIN PS2 tires (these tires alone cost almost $1200). Not many owners selling them yet so hard to get a fair average selling price but IMO based on the average price of the oem 19" wheels & tires these will probably go for around $1500-$2000 at most. Or...
2) You can wait for more low-cost options.
I'm going to do the latter since I'm a cheap a$$.