In 1999 the Mercedes-Benz CLRs suffered from aerodynamic instability leading to airborne cars. After initially happening at the Le Mans test day, Mercedes claimed to have solved the problem, only to have it occur again at warmup. Mark Webber was the unlucky driver whose car flipped on both occasions. The final and most damaging accident occurred during the race itself when Peter Dumbreck's CLR became airborne, flying over the safety fencing and landing in the woods several metres away. No drivers were badly hurt in any of the three accidents, but Mercedes-Benz withdrew its remaining entry and ended its entire sportscar programme.