The Aston Martin DBR9 won the Sebring 12 Hours LMGT1 category in 2005, but came third in Le Mans 24 Hour LMGT1 category, behind arch-rivals Corvette Racing. In 2006, the DBR9 was less successful, finishing second behind the Corvette at both Sebring and Le Mans. Despite not winning Sebring and Le Mans, Aston Martin Racing regularly challenged Corvette Racing for victory in the American Le Mans Series, with victories at the New England Grand Prix, Grand Prix of Utah, Grand Prix of Mosport, Petit Le Mans, and Monterey Sports Car Championships. Aston Martin capped their 2006 ALMS season by finishing second in the GT1 Manufacturer's Championship, earning the factory team an automatic entry to the 2007 24 Hours of Le Mans.