WOW. There is a lot to unpack here.
Summer School a.k.a. Mag Wheels is a vansploitation movie, and if you don't know what that is, I recommend reading Jason Coffman's excellent Freedom, Fun and Fine Transportation: A Brief Guide to Vansploitation Cinema. Basically, these movies are generally about young, unambitious men having fun adventures in their custom vans. The adventures are typically van-competition-related, romantic/sexual, or both. The tone is always fun-loving, antiauthoritarian, and horny.
This particular vansploitation film opens on…