Formerly: amateur driver, including class and overall wins in endurance racing. 1998, founded the investment company Marchfifteen; 2004, founded Marchsixteen, focusing on early-stage technology investments in mid-sized companies, including HWA, the company responsible for developing and racing Mercedes-Benz cars for the DTM (German Touring Car Championship) as well as Mercedes-Benz Formula 3 engines; HWA listed on the Frankfurt Stock Exchange in 2007. Head, Mercedes-Benz Motorsport, responsible for the success of the entire Mercedes-Benz motorsport programme, including the DTM and Formula 3 engine programmes, based in Brackley, UK. Since January 2013, Executive Director, Mercedes AMG Petronas. Former Member of the Board of Directors, HWA. Co-Owner, with Mika Häkkinen, of a driver management company. Investor in and former, Director, Williams F1.