Why do you need spray on products?
I've never heard of a spray-on polish for cars but looks like optimum do one. Remember, you will still need to work it in the same way as any other handpolish eg SRP.
Spray on waxes - Pinnacle do a spray wax, as do Meguairs and Turtlewax. Again, would a liquid wax be what you're after? There's a lot more liquid waxes as most "spray on" waxes are there to top up the wax.