Audi unveiled its latest e-tron concept car at the North American International Auto Show in Detroit. The e-tron is a low slung two door sports car powered by a pair of electric motors.

The concept car looks almost production ready and follows a series of earlier show cars that looked more like small Audi R8s. This latest version has its own design language, a muscular two seat Audi.

According to Audi its use of efficient batteries and electronics gives the car a range of 250 km.E-tron's low weight comes from the Audi Space Frame designed aluminium structure. All the "add on" parts like doors, bonnet, roof and front guards are made of fibre-reinforced plastic to save on weight.

Featuring a production ready interior with simple controls and a revised MMI scroll pad with a touch sensitive surface on the steering wheel. A smart phone is able to be inserted into a slot allowing the audio and video functions of the phone to be accessed by the car.