Siemens will show the wheel motor powered Roding Roadster Electric at the 2015 IAA (Internationale Automobil-Ausstellung) in Frankfurt Germany this month. The Roding Roadster Electric is a hub drive powered research vehicle. Based on the Roding Carbon Cell, this innovative battery-powered drive train could be realized together with Siemens Corporate Technology. The prototypes used for this purpose were constructed without a mechanical brake at the rear axle, instead, braking is done by the electric motor.