An MVP should not be a beta version, but fully functional and bug-free. The idea is to reduce scope to not necessarily even release it (though that's possible) but to have a solid foundation onto which to duct-tape bells and whistles.

The MVP of a car doesn't have heated seats, heck the seats might not even be adjustable without a wrench, but it's absolutely going to drive and drive well and be crash-safe. Because if it doesn't it's nowhere close to being a viable car, go back and fix that before spending time on those seats.