The "aircraft stripper" works great on smaller parts, but I can imagine stripping an entire car with it.
This is gonna sound kind of hokey, but I'm using (or used a month or so ago for an experiment) a set up that I rigged for sanding the drywall mud in my house to lessen the amount of dust created by this process. I tried just hooking my shop vac to the sander with a length of hose, but the filter in the shop vac clogged within seconds from the super fine mud dust........so "plan B". I saw one of these at Lowe's, but couldn't see paying $40 for something so simple.
I'll see if I can describe it so I don't have to drag all of the crap out for a pic...I've got a 1/4 sheet Porter/Cable electric palm sander with a dust collector port (works fine on small projects, but clogs up fast). I ran a 1" dia. hose (15' long) from the collector port on the sander, into a spare 5 gal. bucket (old 'mud' container w/lid [hole in lid for inlet hose from sander, and enough hose fed through the lid to reach the bottom of the bucket]), filled the 5 gal. half way with water, cut another hole in the lid for my shop vac hose to fit through (tight fit, only inserted a couple of inches to prevent it from sucking water).
So here's what happens.....You switch on the shop vac, the shop vac sucks on the bucket drawing on the hose that goes to the sander collector port (think big waterpipe

). The dust gurgles through the water in the bucket retaining a
significant amount of the dust. Any dust that escapes the "water trap" is then filtered by the shop vac.....virtually no dusty mess created by sanding the car. And the shop vac filter lasts much longer before replacement is required.