What I find a bit interesting that they used the same vehicles, Prius and a Cayenne, as a trip that Canadian Driver (now autos.ca) did 7 years ago in 2004. This was the first time I had heard about the road and is responsible for me finally making my trip.
Here's the link to that story.http://www.autos.ca/travel/the-road-to-chisasibi
'Not all who wander are lost.' - J.R.R. Tolkien, The Fellowship of the Ring