My new to me, was delivered yesterday and as you would expect of an 18 month old car is as new. With one exception, the rear hubs, they are quite rusty and look quite shabby when you look at them thro the super alloys that are bolted onto them. I have seen quite a few BMW's like it - My old E85 had new discs fitted three years ago and were as new when I sold it - Do you think its worth having a twist at the local dealer for a tidy up under warranty ? Yes its cosmetic but its not what I would have expected of a fairly expensive bit of kit!