yeah we know it's not a 2 piece case or even a flat 4, it is in fact an aircooled flat 12. The car in question is the Porsche 917, although this is the race car that nearly bankrupt Porsche it is also the most famous and one of our favourites. This car still holds the average speed record at Le Mans, not bad since that was 38 years ago.
Here you see the video we shot of the rolling start of the 917 group at Le Mans Classic, be sure to turn your volume up.