Nick Lars Heidfeld (born May 10, 1977 in Mönchengladbach, West Germany) is a German racing driver In 2010 he was the test and reserve driver for the Mercedes GP Formula One team. In August, Mercedes released Heidfeld from his contract to allow him to do tyre testing. He will test the new Pirelli tyre that will be used in the season. He previously raced in Formula One from to . 