General Motors EN-V Concept Car

The EN-Vs can communicate with each other allowing platooning, with one or more EN-Vs tagging along automatically behind a leader. Also, if a EN-V detects another by radar, it can check what that other is intending to do and agree on how to pass it safely.
Specifications
Powered by two electric motors, one on each wheel, and a lithium-ion phosphate battery, the EN-V has a top speed of 40 kilometres per hour (25 mph) and a maximum all-electric range of 40 kilometres (25 mi). The sensors and communications equipment which allow it to drive itself include short-range radio and GPS, as well as optical sensors, ultrasonic sensors and doppler radars. The two-wheeled balancing system the EN-V uses was developed by Segway.