Sebastien Loeb sealed his ninth win of the season after a stunning victory on the Corsica Rally on Sunday. The Frenchman became the first driver in the history of the World Rally Championship to claim a grand slam - winning all of the event's stages.
Finland's Toni Gardmeister sealed the runners-up spot, while Norwegian driver Petter Solberg was third.
Citroen's Loeb has already sealed the world title after finishing second on the Rally of Japan earlier this month.
He was crowned world champion for the first time after last year's Corsica event.
Loeb now has 19 career rally wins, and this season set a record of claiming six in a row.
"I said I badly wanted to win this rally. We attacked from the start and being able to win this way is great," he said.
"I was feeling good, I was able to attack from the start to the end without taking any risk."
However, Loeb's Citroen team-mate Francois Duval was forced to retire following a crash in the ninth stage.
The Belgian's withdrawal meant that Citroen's hopes of securing the world manufacturers' title on home soil were dashed.
The penultimate race of the season will be in Catalunya next weekend.
Corsica Rally results:
1. Sebastien Loeb (Fr) Citroen Xsara 3hr 35min 46.7sec
2. Toni Gardemeister (Fin) Ford Focus at 1:51.7
3. Petter Solberg (Nor) Subaru Impreza 2:42.0
4. Stephane Sarrazin (Fr) Subaru Impreza 3:34.2
5. Roman Kresta (Cz) Ford Focus 5:21.5
6. Alexandre Bengue (Fr) Skoda Fabia WRC 5:27.8
7. Xavier Pons (Sp) Citroen Xsara 5:41.8
8. Nicolas Bernardi (Fr) Peugeot 307 6:32.1
9. Gigi Galli (It) Mitsubishi Lancer 6:37.8
10. Harri Rovanpera (Fin) Mitsubishi Lancer 9:22.5