I work for a crop dusting company and we have 3 planes, 6 trucks, 3 tractors, a combine, and multiple other pieces of farm equipment. And my boss being the most anal S.O.B. on the face of the earth keeps every single piece of equipment looking like its never been used. It looks really cool when you walking into our hanger (we call it the show room ;) ),.
We use 3M rubbing compounds and polishes followed by at least 2 coats of New Finish wax on every single one. We have one show tractor that we then use a Miguiers show car wax on. We buy everything in super bulk and my boss is cool enough to let me swipe a bottle of each once a year or so. Those are what I have used on my focus for years. Just tried turtle wax show car wax paste on top of the new finish for the first time a few weeks ago. Gives a super deep shine.