Alongside long-time teammate Kristensen and Englishman Guy Smith, they won the 24 Hours of Le Mans, giving Bentley a first victory at the French circuit in 73 years.
With the end of the Bentley project, Capello returned to Audi and more specifically to Team Goh for the 2004 24 Hours of Le Mans.
Alongside Japanese driver Seiji Ara and Tom Kristensen, Capello would once again stand atop the podium as the trio beat the fellow R8's of UK Team Veloqx and Champion Racing, marking the third time in five years that Audi had finished 1-2-3 at Le Mans.
The first half of the race was dominated by the Peugeot trio, with the 'Lion' consistently lapping over three seconds faster than the Audi's.
However, a drastic change in weather conditions and the onset of rain in the second half of the race swung the momentum in favour of Audi, and a clever pit stop/tire strategy for Audi meant the no.2 R10 would go on to take a famous victory for the German manufacturer, and a third and final win for Capello.
In both 2006 and 2007 Capello finished as champion alongside Britain's Allan McNish in the Audi Sport North America run R10.
Capello officially retired from prototype racing in 2012, while leading the FIA World Endurance Championship after hinting that he may not return to Le Mans in 2013.