I remember watching an interview not too long ago about Elon being disappointed with how slowly the regulations around cars are to change. He mentioned specifically putting cameras in place of the side mirrors, and how Tesla petitioned to have the laws around it changed about 3 years ago. Looks like they succeeded in getting the laws changed.
Seems weird that they went for the SUV crossover next. Although I guess that's the next rung on the ladder in order of bringing the price down. Fancy 2 seater -> Fancy sedan -> semi-fancy suv -> semi-fancy van | semi-fancy car.