Only one driver had previously managed to secure the title three races before the end of the season back in 2001.
The race at the 3.478-kilometre circuit could actually determine the winner of this year’s Drivers’ Championship.
Martin and Tomczyk also in the points.
DTM action at home away from home
Wittmann wins, ahead of Farfus, Glock and Tomczyk, to extend his lead.
Bruno Spengler completes first one-two of 2014 for BMW