Archive 2 and 3 are corrupted, and the file names are messed up as well with one dot too much at the end where the correct indexing should be attached.
However, I got the route from valley to peak and reverse by copying only the first archive. I wonder what the others are needed for?
Fun to drive, but the AI has a very exotic pathfinding near the peak.
Mostly drive slalom between bushes, and on its roof.