A little off-topic, since you are looking for 18" rims, i am considering selling the OEM rims off my M Coupe.
With the correct tire sizes (225/40R18 & 255/35R18) these will fit fine on your car.
This is what they look like on my car.
You don't have enough posts yet to PM but if you are interested in these send me an email at
icespyder7@hotmail.com and we can discuss more.