 In 2005, Daimler became the sole owner of Ilmor and renamed the company first to Mercedes-Benz High Performance Engines, then to Mercedes-Benz HighPerformanceEngines.In December 2011, the company was renamed to Mercedes AMG High Performance Powertrains along with the renaming of Mercedes GP to incorporate the Mercedes-AMG brand.At the same time, the small Special Projects part of the company, which between 2003 and 2005 had been contracted to co-develop, arrangement, preparation and tune up Honda's IndyCar Series engines until 2011, split away to become a separate company, owned by Mario Illien and Roger Penske.