I've just finished my M5's rear wheels using the Wurth Silver and clear coat lacquers and they look like new again
Excellent Oem Bmw colour and the lacquer gives it a smooth deep gloss top coat which should be easy to clean. I might get some Poorboys wheel wax for them too.
I got a couple of tiny sags in the silver coat and the same in the clear coat, but they're hardly noticeable.
As a result of my over enthusiasm I didn't get 2 wheels from 1 can (400ml) but If you're careful, I think you probably could. I used 1.5 cans of silver to cover two wheels, and one can of clear lacquer..
I ordered 2 more sliver and one lacquer to do the front wheels next, and a can of Wurth undercoat.
That gives me a bit left over to tidy the corrosion on the Alpina's wheels, then I'll probably get them refubed by a pro next year.
Thanks Quattroboy, top recommendation, and the UK dealer link you provided are excellent, fast delivery, free detailing guides and I've had 3 complimentry microfibre cloths (free) as well... they do all the top quality detailing products and I'll be ordering all my bodywork bits from them in future