The latest etron concept from Audi is this urban electric car concept. The concept pictures show off some interesting features but a full physical model won’t be available until September when it debuts. The body is made of carbon fiber reinforced by plastic and has free-standing wheels with slightly staggered seating. There are two e-tron electric motors powered by a lithium-ion battery. Apparently, you enter the car from the tailgate. Should be interesting to get behind the wheel of this one when it comes out.