My uncle in Wisconsin is a multi-decade fanatic about having a shiny car.  He recommended Nu-Finish...the $8 stuff in a bright orange bottle.  I bought a bottle.  Tried it on my daily driver, 2004 Toyota Highlander.  (I'm still in the "Insurance Phase" of getting my wrecked 85 Vanagon fixed.)  I was delightfully impressed.  Super easy to apply, super easy to wipe off.  Very slick and shiny, and so easy.  I've been a long-time fan of Carnuba Wax, and use once or twice a year on both Highlander and Vanagon; but that's always a project...with sore arms and shoulders.  This Nu-Finish product may just be the better alternative.  Scotty Kilmer and others have also suggested it's use on glass; many other YouTubers agreed as a Rain-X alternative; water just flows off.  Only thing to beware of is DO NOT get it on rubber or black plastic parts.  Anyway, it just might be the "lazy man's" way to have a shiny Vanagon, with great results that last a long time.  Apparently it's been around forever....but only now am I discovering it.