The NSR car isn't the car that won at Le Mans. The car that won at Le Mans was the e-tron Quattro as shown in the 2nd pic below. I believe the NSR is the #2 that raced at Spa in 2011. See pics below (notice the white lettered P1 on red background in the pic and red mirrors from Spa 2011).
Yes, I failed to specify I meant the 2012 winner in the picture. The Spa pic is from 2011. I don't think it is the 2011 winner because of the absence of the Le Mans decal and the fact that the P1 is red with white background in the 2011 Le mans version.