Joby S2

When it comes to versatile personal transportation, the Joby S2 is hard to beat: a two-seat airplane that can land and take off vertically, then rotate its electric-driven propellers to fly horizontally at speeds of up to 200 mph. Joby Aviation, a small private company based in Santa Cruz, Calif., says the S2 is “in active development” and that it features redundant systems that will make it easy to operate and safer than a car. (jobyaviation.com)