Sorry I hadn't responded, I had to go check the flavor of my headlights. They're cinnamon...
I haven't done it to my '07 since it doesn't need it but I have used toothpaste on a Lexus I owned a few years ago when one of the headlight covers got scuffed by a knucklehead in a Ram pickup. Worked great, especially since Mother's Polish didn't exist then. Got the idea from a body shop.
I've used Mother's both by hand and using a PowerBall Mini and both ways work great, just depends on the size and shape of what you're polishing. The taillight lenses on my Chevelle look new after hand polishing them and I've used a PowerBall on my wife's Mercedes headlights with equal results.