We talked about the Mazda 787B and Le Mans 1991 in the 'Beauty and the Beast' thread. I was there and was lucky to witness Mazda win the race, the first Japanese victory at La Sarthe.
I managed to find the photos (although not all of them) and made some scans. The photos are really not that great as I did not have a good camera but they give an impression. In the batch I found I could not find a picture of the winning car but there is a photo of the other Mazda. But I'm quite sure I must have a photo of the green/orange car somewhere... if I find it I'll post it here.