Renault has named Nissan's Americas chief Carlos Tavares as its new chief operating officer.
Tavares will start his new role on July 1 and he replaces Patrick Pelata, who left the role in April after his part in Renault's failed investigation into industrial espionage allegations.
Renault has said developing its French production sites would be Tavares's main priority, but he joins the firm at a time when its sales are falling at an alarming rate.
French radio station BFM has claimed Renault's sales have fallen 35 per cent year-on-year since May 1 and dealers were now offering discounts of up to 45 per cent on certain Clio models.
Renault has not commented on the reports directly, but has said the removal of France's scrappage incentive schemes was causing a market downturn.