1966 was a milestone year at Le Mans since Ford famously managed to beat Ferrari. But in between the Fords and Ferraris with their hundreds of horsepowers, there was also a tiny little car that became the darling of the crowds. It was the Mini Marcos, driven by JeanLouis Marnat and Claude BallotLena. The 1300cc car managed to finish an incredible 15th overall. This is the film footage I have found of it, put together in one video.
The car itself was found back in December 2016 in a sorry state. Regular updates on the restoration can be found here: http://maximummini.blogspot.com/