Mercedes-Benz has shown a teaser image of their Concept IAA that is set to be revealed at that Frankfurt Motor Show.

The car has the shape of a four door coupe with a sloping roof line similar to that of the Audi A7. IAA stands for Intelligent Aerodynamic Automobile and Mercedes says the concept has a drag coefficient of only 0.19. The company says that it is “an aerodynamics world champion and a four-door coupé with embodying irresistible design.”

No technical details are out yet .