Fellow Mini driver Krzysztof Holowczyc moved ahead in the general standings in the car category.
Hummer driver Robby Gordon, fifth in Tuesday's stage, is second behind Holowczyc, trailing by just 54 seconds. Giniel de Villiers, the 2009 Dakar champion, is third, one minute and 40 behind the Pole. Stephane Peterhansel, who had led the overall standings after Monday's stage, suffered twice from punctures.
In the bike category, Cyril Despres won the stage and overtook Marc Coma in the overall standings.
Another French rider, Sebastien Coue, was admitted to intensive care in San Rafael hospital after he suffered a broken shoulder and then lost consciousness, slipping into a coma in the extreme heat.
He was given an ice bath at the scene to bring his body temperature down and will now need time in hospital in Argentina before flying back to France.
Argentinian rider Jorge Martinez Boero was killed in a crash on Sunday.