Spaniards Jose Maria Servia and Oscar Gallardo, who began the day as leaders respectively of the car and motorcycle classes in the Dakar Rally, both fell out of contention during yesterday's seventh stage.

Servia's Schlesser buggy became stuck in the dunes of the Nega desert in Mauritania, while Gallardo took a wrong turn during the 434km timed section of the 625km stage.

The Frenchman, Jean-Louis Schlesser, driving his Schlesser buggy, took the overall lead from his Spanish team-mate Servia.

Another Spaniard, Miguel Prieto, in a Mitsubishi, won the stage which began at Tidjikja, Mauritania and ended at Nioro, in Mali.

He was 12 minutes 46 seconds ahead of Schlesser, who leads overall by just more than 15 minutes from German Jutta Kleinschmidt, also in a Mitsubishi.

In the motorcycle class, Frenchman Richard Sainct snatched the lead from his BMW colleague Servia as Italian Fabrizio Meoni rode his KTM to stage victory.

Sainct came in nearly 10 minutes ahead of Finland's Kari Tiainen, with compatriot Thierry Magnaldi third.

Sainct is almost six minutes clear of Magnaldi in the overall standings. Placings (cars):

1, Miguel Prieto (Spain) Mitsubishi six hours 40min.28sec. 2, Jean-Louis Schlesser (France) Schlesser 12:46 behind. 3, Jutta Kleinschmidt (Germany) Mitsubishi 20:03. 4, Hiroshi Masuoka (Japan) Mitsubishi 26:37. 5, Stephane Peterhansel (France) Nissan 36:40. 6, Kenjiro Shinozuka (Japan) Mitsubishi 1:00:48.

Overall - 1, Schlesser 28hr 44min.32sec. 2, Kleinschmidt 15:07 behind. 3, Prieto 20:03. 4, Masuoka 1-13:28. 5, Shinozuka 1-52:40. 6, Peterhansel 3-13:34.