The Audi Urban concept is part of Audi’s e-tron electric vehicle programme, drawing power from two electric motors.
The motors are likely to be either mounted at each axle, or inside two of the semi-open 21-inch wheels.
The wheels also hold brake-energy recuperation systems, increasing the lithium-ion battery pack’s charge.
Like BMW’s i cars, the Urban concept features a carbon fibre-reinforced polymer body, built on an aluminium platform.
In the cabin, driver and passenger seats are molded into the body, and the driver can adjust the pedal and steering wheel positions to suit.
It is unclear at this stage if Audi plans to put the Urban concept into production, and rumours suggest it may yet preview either a return of the efficient A2, or another model in upcoming e-tron range.
Watch for the Urban concept at next month’s Frankfurt Motor Show.