So far I’ve used a ton of spray waxes but the best one I can recommend currently is Turtle Wax ICE. I use it for my personal car and it provides the best shine and smooth feeling out of the ones I have tried so far. Other benefits of using wax on a dipped car are: added protection from chips & scratches, repelling dirt and water, and an added level of waterproofing. Overall I’d say the turtle wax Ice made it noticeably more shiny/glossy than without it.
You can buy the wax on amazon for about $8 here: http://amzn.to/1qgFlGt
My waxed car: