I have "chrome plated" bumpers and other model items with BMF if I either didn't want to spend the money or wait for chroming. Regards to wheels....If mine are too intricate or deep I spray with silver and clearcoat. Be careful with aerosol clearcoat because if you spray too much the wheels will be hazy and /or yellowish. I use a spray gun with automotive clear. If you use BMF on bumpers you have to do it in pieces. My overlap seams never show that much.