Audi urban concept.automotiveIT

Audi’s urban concept will have a carbon-fiber shell (Photo: Audi)

Joining the race to lead a new generation of city cars, Audi will show a 1+1 seat electrically propelled urban vehicle at next month's Frankfurt auto show (IAA).

The German premium carmaker said in a press release that the concept car, which will be made of lightweightcarbon fiber, will combine "elements of a racing car, a fun car and an urban car."

Rival BMW recently also unveiled a new city car, the i3, which will seat four.

Other car brands are also developing smaller, electrically driven vehicles that will cater to urban dwellers. The moves are sparked by expectations that more people will live in megacities and that concerns over air pollution will trigger a sharp rise in electric vehicles in those cities.

Audi said its concept car is not based on any previous model. The two-seater will have controls and materials that will allbe ultralight . The driver can adjust the steering wheel and pedals and the roof slides open to the rear to let in passengers.

Sporting 21-inch wheels, the Audi concept will be propelled by two e-tron electric motors that will be powered by a lithium-ion battery.

The Frankfurt auto show, the world's biggest car gathering,opens to the press Sept 13.