The DR7 is designed to be a personal commuter aircraft. So far, a 1/3 scale full composite proof-of-concept aircraft has been tested successfully. In order to minimize the propeller hazards, the rotors have been enclosed. They are tilted downwards for vertical take-off and landing (VTOL) launches and landings. They tilt horizontally to go forward. And all of this fits into a regular car garage.
http://www.deloreanaerospace.com/
Short of the revolutionary Burt Rotan wild aircraft designs, airplanes have changed little over the past decades. Winged-cylinder with a propulsion system is how we travel through the air. Unless you have the astronomical budget the military enjoys to design hypersonic aircraft, not for the general public, the choice is simple — airplanes or helicopters. DeLorean Aerospace just announced that its DR7 should fly by the end of 2018. That would shake things up, but is it practical, viable, for real?