What's the best cleaning/polishing compound for the aluminum wheels of a 2002 Impala LS Sport?

Your wheels are coated with urethane clear,the same product used over the base coat color on the body.Use any wax or light polish you would use on the body,don't use metal polishes of any kind because you're polishing paint,not aluminum.

Mothers Mag and Aluminum Polish.

where I live it costs $8 to turn rotors. But if they are warped then I would recommend getting new ones. For the impala they are about $28 a piece at Napa. Do not get salvage yard rotors. Spend the little extra and get new ones. I just did a 2003 monte carlo pretty much the same car as far as the brakes are concerned it cost me $18 for the set of pads and $28per rotor. I just did the front. Total bill was $80. That is just parts if you are taking them somewhere to have done add about $100 to that price.

There is an excellent cleaner that I have found works better than "Mother's" products or Meguire's.

It is called "Flitz" Aluminum and Magnesium polish/cleaner.

It's not sold in too many retail stores,but can be ordered online. See the links below.

For automotive metals, Wolfgang MetallWerk™ Fine Aluminum Polish is the best all around metal polish to restore a bright, metallic gloss.

http://superiorcarcare.net/wolfgang-metallwerk-int...

Alumagic cream.