Nice movies , thanks for sharing I downloaded some of them .
From the sounds it seems all those trucks are having diesel engines ???
In the film No 5 the driver really chosed the hard way to do it by digging this hole deeper and deeper instead of backing up little bit and get advantage from the little space he got to sprint out of the spot without digging holes with his spining tires .
Anyways to each one his own style in driving and the more we see the more we learn .
I think all of the featured cars are diesels. The majority of 460's here in Norway are 300GD's. There were 2 280's but Tom who did the filming had one of them. The other had broken rear springs I think and didnt attempt the worst climbs.
The guy who dug himself down did try to back off and sneak back up, but this was his last attempt, and I think he rather would flatten the hill than climbing it once more [;)]