Polish or wax?
Polish will contain abrasives to clean the paint so if the car is freshly painted, you may be better off using a 'wax' instead.
The more 'carnuba' in the formula the better the wax and easier to use/deeper the shine.
I use 'Swissvax Onyx'
http://www.swissvax.co.uk/ (other products are available) which is not cheap (some of the others are very expensive...... ), but goes on easily (you can even do it with the palms of your hands) hazes over and buffs off with no effort.
No nasty white residue anywhere
