Marco Wittmann reveals the new BMW M4 DTM at Hockenheim
BMW Motorsport driver and reigning DTM champion Marco Wittmann has unveiled the new M4 DTM which the Bavarian manufacturer will race this year.
Wittmann posted pictures of the new BMW challenger, which features heavily revised aerodynamics, on his Facebook account.
The series will run with new technical regulations in 2017, with the teams having developed revised versions of their cars during the winter.