This is considered to be the best polisher for car use. It is a random
orbital polisher so it won't burn out the paint.
While useful for removing swirls out of the paint, it's also good for
applying wax.
This is probably the lowest price I've seen. Amazon normally has it for $
117.99, but the $20 off $100 select Porter Cable items that Amazon has until
Nov 30th brings this down to under $100.
Link: http://www.amazon.com/Porter-Cable-7424XP-6-Inch-Variable-Speed