The best thing to use is the the Porter Cable 7424 Buffer/polisher. It will not burn your paint and it will take care of those swirl marks. You can pick one of these up band new for like $119.00 with free shipping at http://WWW.Tools-Plus.com. Not affiliated with this site , just did a search and they had the best price. I have one of these and using it with some Meguires polish you can see yourself like a mirror in the shine. Like they said above that a lot has to do with the products that you are using to get your job done. Visit the Meguires website and they have all sorts of video's to show you how its done..And of course the products too!