Rims
well it depends, if you want the total stealth look and dont wanna worry about cleaning the rims every other day get onyx black. But if u want the "bling" factor or to have something that will get someone out of the corner of their eye i owuld got with hypersilver and gunmetal on black i owuld just skipp on that will probably just look liek they are dirty all the time.... just my $0.02 [8D]
Audi = cleaning wheels every other day. The black hides the dust more, but you will still see it. Clean, they will be shiney black (if you go shiney) and dirty they will look flater black. My friend has it done and that's the way it goes.


