3M swirl mark remover for the rest of the car. the Nicsand is a real fine compound of Aluminum Oxide, kinda acts like a 10,000 grit sandpaper. it won't scratch the paint or leave swirl marks, and can polish any paint surface like glass. just use a polish and wax afterwards.
the 3M swirl mark remover is awesome stuff... just make sure to use a foam pad and keep it damp. Both products you can buy from PepBoys.