This is the EN-V concept car, an upright two-seat urban runabout that promises a brighter, cleaner, cleverer and more convenient future for the city car.
Hailed as General Motors's most significant concept since the Chevrolet Volt, the EN-V has been designed and developed with its Chinese joint venture partner SAIC.
Three versions of the EN-V concept car have been designed, but each is based on the same mechanical platform. Each is roughly six feet tall, four feet wide and four feet long.
Each variant seats two occupants side by side and has a wheel at both ends of the lateral centre line of the car. Each wheel is powered by a 3kW electric motor drawing power from a battery of lithium ion cells.
GM says the EN-V will do around 25mph flat out and has a 25-mile range on a full charge, but claims that both of those figures will be sufficient to make the car suitable for use in traffic-jammed 21st-century cities, where you could fit four EN-Vs into the same road space taken up by a typical family car.
This concept has been three years in the making, and adopts Segway mechanicals as the basis for its propulsion system. However, unlike on a Segway, where the rider controls forwards and backwards movement of the vehicle using just his balance interpreted by a series of gyroscopic sensors, the EN-V’s driver sits normally, using a by-wire steering system, hand-operated accelerator and brake.
That’s because the EN-V automatically shifts its weight front to rear by electrically adjusting the position of its body relative to its chassis below. It therefore has the ability to instinctively and automatically balance on only one axle like a man on a unicycle, and is much more manoeuvrable than cars with two axles. It can turn 180 degrees within its own body length, and be parked in the most restricted urban spaces.