While it has yet to happen, a number of companies are expecting commuters to take the skies in the coming years. Count Cadillac among them. Unveiled at the virtual CES 2021, its VTOL concept is an all-electric, fully autonomous single-seat drone. It uses an octa-rotor propulsion system and next-gen battery technology to hit speeds up to 55 mph while traveling from rooftop to rooftop, far above the congestion below. As with most concepts, no production plans have yet been announced.