I just polished my Boxster's hardtop, before putting it away for the top-down season.
Step 1 - wash
Step 2 - clay bar
Step 3 - tape
Step 4 - meguiars M100 compound - (this does the heavy lifting of the paintwork correction - eliminating all scratches)
Step 4 - meguiars m205 polish (this gets rid of haze visible in certain lighting conditions)
Step 5 - menzerna power-lock sealant
Result - it's more perfect than most cars are when brand new! No scratches, no haze. Crazy "baby bottom smooth" feel when touched, and water beading action.
Someday, I'll do the whole car.
