-powered 2007-spec B07/46, based on the B05/40. For their initial season in 2005, one B05/40 would be used by Intersport Racing in the
American Le Mans Series season, while Chamberlain-Synergy Motorsport, Lista Racing,
Ray Mallock Ltd. and Binnie Motorsports competed in the
Le Mans Endurance Series. In the ALMS, Intersport would easily take the LMP2 championship with five victories over the season. Meanwhile, in the LMES, Chamberlain-Synergy would take the LMP2 championship, while Ray Mallock would take second and Horag fourth, with each of the three teams managing one win over the season. In the middle of the season, at the
24 Hours of Le Mans, Intersport would join Ray Mallock and Chamberlain-Synergy for the endurance event, with Ray Mallock taking the LMP2 victory. Going into 2006, all of the B05/40 teams would remain, although Chamberlain-Synergy's team would be taken over by ASM Team Racing for Portugal midway through the
Le Mans Series season. For Intersport, the
American Le Mans Series LMP2 championship could not be retained due to new competition from the
Porsche RS Spyder, even though Intersport scored three wins. A similar situation would occur in the LMS, with Barazi-Epsilon's
Courage Competition outdoing the Ray Mallock EX264, which had one win. Although Chamberlain Synergy's chassis scored three wins during the season, their take over by ASM Team Racing for Portugal meant that the team's points were split, denying them the championship. For the
24 Hours of Le Mans, Ray Mallock would again take the LMP2 victory, with Intersport, Binnie and Chamberlain-Synergy also participating. For the 2007 season, Intersport would move to the LMP1 class with a new chassis, while
Fernández Racing would join the series with an upgraded B05/40 for use with the
Acura Le Mans project. B-K Motorsports would also purchase a new B05/40 for use with their
Mazda project, switching from a previous
Courage chassis. Ray Mallock, Horag, Binnie and ASM Team Racing for Portugal would all remain in the Le Mans Series, all running with the 2007 upgrades. ==External links==