2011. 06. 30..

The 180 kWh electric engine of Siemens can propel the Porsche Carrera 997 roadster up to a speed of 220 KPH with zero emission. Equipped with a 29 kWh nominal capacity lithium battery, ranging up to 150 km, the race car was tested by journalists as well as the employees of Colas Hungária on the new concrete carriageway of the M0 motorway.