And brief open-throttle is all it needs to conquer almost anything. It reminds me of the Mount Garfield MI AMA sanctioned hillclimb, one of the oldest AMA-sanctioned races there are. Back in the 'old days,' the Grand National Champion, who got to wear the #1 plate in AMA competition next year, had to race in flat track, TT races, road racing, speedway and hillclimbs to earn sufficient points to with that coveted #1 number plate. At some point, the race participation was shortened to half-mile, mile, short track and road racing events. I believe that was in the early/mid-1970's.
The picture quality reminds me of the Sasquatch/Yeti/Abominable Snowman videos. Who's that lurking behind the tree? Sasquatch!