No real problems with mine build quality wise, no rattles, nothing.
Only things I supposes that I am unhappy about are regarding the design/quality :
- The 18'' monzas are a mission to keep from scratching/marking. I have to wash them with great car. Lots of soapy water and a lambswool mitt. Even then after 7 months of ownership there are a few scratches in them.

- The foot pedals have scatched quite badly and have gone shiny in places where my foot is on them. Not impressed by that at all - any one else find this?
- The brakes. They are very "grabby" - came from BMW 1 Series before GTI and the brakes (as with most BMW's) were excellent. I find there is half an inch of travel in the brake pedal where it does nothing and then all of a sudden they start grabbing, which can make it quite jerkie breaking.
