Gary Paffett won the DTM season finale in Shanghai on Sunday, while Paul di Resta sealed the title with second place.
Paffett took the lead from his Mercedes team-mate at the first round of stops, where di Resta was delayed by a slow change of his right rear wheel.
Di Resta then started to come under pressure from the Audis of Timo Scheider and Martin Tomczyk in the closing stages, but his title was secured when a clash between Mike Rockenfeller and Susie Stoddart brought the red flags out with six minutes of the race remaining.
Behind Tomczyk, Miguel Molina got himself up to fifth by leaving both of his stops until very late in the race.
Jamie Green was next up, having run third for much of the race. But the Briton lost out to Tomczyk when the German passed him shortly after both had made their second stops, and their scrap enabled Scheider to make his stop and emerge in a clear third.
Markus Winkelhock took seventh, while David Coulthard finished his first DTM season by scoring his first point.
The Scot had run sixth in the early stages, but he was held up by the lapped car of Bruno Spengler in the middle of the race, and then stalled at his second pitstop.
He was running 10th once everybody had completed their second stops. That became ninth when Oliver Jarvis ran over some debris at Turn 3, and Coulthard then pinched eighth from former champion Mattias Ekstrom three laps before the race was stopped.
Spengler, who came into this race as the championship leader, came home 13th.
The Canadian started from the back after crashing in qualifying, and he then tried a radical strategy by making both of his mandatory stops early. It did not pay off, and he slipped behind di Resta and race winner Paffett in the championship standings.
Pos Driver Car Time/Gap 1. Gary Paffett Mercedes 51m57.657s 2. Paul di Resta Mercedes + 3.751s 3. Timo Scheider Audi + 4.212s 4. Martin Tomczyk Audi + 5.341s 5. Miguel Molina Audi + 16.306s 6. Jamie Green Mercedes + 18.152s 7. Markus Winkelhock Audi + 19.469s 8. David Coulthard Mercedes + 21.835s 9. Mattias Ekstrom Audi + 23.554s 10. Ralf Schumacher Mercedes + 24.182s 11. Susie Stoddart Mercedes + 35.086s 12. Mike Rockenfeller Audi + 35.319s 13. Bruno Spengler Mercedes + 36.120s 14. Katherine Legge Audi + 39.710s 15. Cong Fu Cheng Mercedes + 47.386s 16. Maro Engel Mercedes + 1 lap 17. Oliver Jarvis Audi + 2 laps