Thanks for the replies guys, I have to admit I do prefer Sterling Grey to the silver, I think arguably one of, if not the best colour for the Z4..
I am a fan of the 108's and think they are the best factory wheel available (have I just started a debate?? haha) Also they do seem bigger than the M's wheels, i think its just the fact that the M's tyres seem to have a larger profile, not sure if thats the case though?
TAZ X... Ive PM'd the details, but theres no cash in my bank yet, infact just an amount of money spent on a book called "how to deal with the fact you've bought the wrong Zed..... I should've got a roadster"... which im sure you know nothing about :wink: