Zaino is not a polish, it's a sealant.

Anyway, you can use either Z7 or a wash with wax in it, however if you use the wash & wax you will not be able to re-apply Zaino until the everything is stripped. In general, I avoid wash & waxes as the wax in the tends to trap dirt while washing the car.

 

WOW! She's a real beauty Shane. I'm jealous.