These are the coolest places in the world where you'll find automakers developing their newest cars. Well, you could. If you were allowed in.
Sometimes, there are things you just can't do on public roads.
Honda has put its 4,255-acre Mojave Desert proving grounds up for sale, complete with 7.5-mile oval, 4.5-mile road course and support buildings. Buy it and you can show off your motorcycle hooning skills to the desert rabbits.
If you ever wondered how Volkswagen tested its vehicles for durability, here's a list of activities: Speed bumps, parking abutments, shrubbery, angry women, sledgehammers and an Austro-Cajun two-beat with a accordion chaser. But do not stop watching before the jump test (vans away!) and barrel slam. This gives us…