Car 68 is a 1968 (how did they do that?) Mustang owned by Peter Weigelt and Beat Hirs from Switzerland.
These nut jobs ran a Rolls Royce Silver Ghost on the 2015 Alpine Trial - how it went around the hairpins I do not know. From memory I think they did pretty well.
Here's a photo of the Mustang and below one of the Ghost standing next to Rhubarb and Custard.