Whoa, brought back memories! My first new dirt bike was a '74 CR125, and I continued racing the amateur circuit in Michigan, a hotbed of motocross back in those days. A lot of European-style tracks.
Watching McQueen ride in the desert is awesome! I knew he could ride, but didn't know he was that good. I, too miss the early days when a bike was affordable and there were places to ride.
Lost almost an hour after the McQueen video watching old motocross videos. Well worth it!