My son recently bought a Camaro with original brushed/textured aluminum wheels. They have stains that regular washing and scrubbing won't penetrate.
Any products or ideas on how to make them look better? Thanks!

You need to determine what the finish is on the wheel. It it's clear coat sealed, the finish may be damaged. You can try some automotive clear coat rubbing compound (look in the automotive paint section). If it's a bare alloy/polished alloy wheel, you will have to get some alloy polish in the automotive wheel cleaner section. Both of these will be in a paste form that you rub on and buff off.

Thanks for the insight Grant. Oz