Tomas Enge overtook pole sitter Alex Yoong of Malaysia on Sunday to give the Czech Republic its first victory at China's season-ending A1 Grand Prix of Nations.
The French drivers, meanwhile, raised the championship trophy for the series' inaugural season that they already wrapped up at last month's American GP.
Switzerland was second for the season, followed by Britain.
Yoong's win in the sprint race earlier Sunday put him on pole for the longer feature race, and he looked primed to make it a double.
However, a first-lap crash between Indonesia's Ananda Mikola and Michael Devaney of Ireland brought the safety car out. Enge was able to pass Yoong on the first turn after the restart.
"I think it's going to take us a week to understand what happened today," said Enge, who turned doughnuts in celebration after the win, sending clouds of burning rubber toward his ecstatic pit crew.
Enge, who led from the fifth lap, finished in 59 minutes, 23.250 seconds, more than 6 seconds ahead of Yoong. He also had the fastest lap of 1:52.695 on the 5.5-kilometer Shanghai International Circuit, hitting a top speed of 278.8 km/h
Yoong had the consolation of his sprint race win of 28:17.807, almost ten seconds ahead of Britain's Darren Manning.
Australia's Ryan Briscoe was third in the feature race, three seconds behind Yoong. New Zealand, Pakistan, and France completed the top six.
Hosts China, with Shanghai native Jiang Tengyi at the wheel, was 16th.