I won't post links to them, mostly because there's so many of them and most of the vids are insanely long for You Tube clips, but there's tons of lengthy onboards from Audi, Toyota and Porsche at Le Mans this year on You Tube for those intrepid enough to watch them.
Here's a link to this fellow's You Tube Page:
https://www.youtube.com/user/slipstreamlms/videos