I had some on my 335 with pilot sport tyres and after a few weeks had picked up a lot of small chips. Would not have lasted a winter with the salt like we had this year.
CSL's all the way...................................
Dont know what everybody's talking about chipping, cracking, bubbling etc. I've had these (18") on the car since 2006 and they still look pretty much the same as when they were new. With tyres they cost £2995 from sytners so the deal here looks not bad