More uncertainty surrounds the future of more than 500 workers at the Enstone base of the Renault F1 team.

Bosses were today putting out conflicting statements as rumours circulated that it may quit Formula One following a board meeting in Paris.

Chief executive Carlos Ghosn refused to confirm whether the French carmaker will stay in F1 in 2010.

He said: “We will announce our strategy in terms of Renault’s role in Formula One before the year’s end. It’s not very far away, it’s in a few weeks.”

But Renault F1 managing director Jean-Francois Caubet told French sports newspaper L’Equipe: “We have already contracted our drivers, had our budget approved and are enrolled in the world championship.”