I wouldn't rely on electronic buffers. I used one on my old 98 civic and it left a ton of swirl marks. I found it better to just polish, or buff my cars by hand than to use a machine. BTW the Maguiar's or Mother's claybar system works flawlessly. Though you're gonna take
FOREVER to do the whole car but its well worth the effort. Afterwards apply the wax of your choice, I normally apply three coats of wax. Can never be too careful