Quote Originally Posted by NSXType-R View Post
You mean the truck right?

Has the Audi R10 been the only diesel contender?

Also, in the early days of the race have there been other forms of fuel as well?

Do rules allow other forms of fuel, e.g. electricity, etc?
No the cars it's towing I think are a Lola T70 of some kinda and a Ferrari 712.

Someone ran a diesel way back... I'll Wiki it.

Here it is:

Alternative fuel sources would also play a part in more normal engine designs, with the first non-gasoline car appearing in 1949. The Delettrez Special would be powered by a diesel motor, while a second diesel would appear in the form of the M.A.P. the following year. Although diesel would appear at other times over the race existence, it would not be until 2006 when a major manufacturer, Audi, would invest in diesels and finally succeed, with the R10.

The Peugeot 908 is also a diesel.

I think someone maybe ran a hybrid of some kind in the late 90s as well.

Toyota has expressed interest in making a hybrid KERS LMP under the new regulations in 2010 or so.