hi would be grateful for any advise. i am currently looking to change my car i have a 2007 audi tt at the minute and have been looking at at a 2012 2.0 m sport with 19" rims. i have has a quick look through the board and there seems to be lots of people having problems with there z4 cracked rims and various noises from different parts of the car. looking for any advise the car i am looking at is 6 months old is there anything i should be looking at before buying it. Has bmw has fixed the rims cracking also with the newer models also have they fixed the security thing with the keys being copied. and just one last question would you buy another z4 would be grateful for any advise cheers si. :|