I've seen my uncle do it. He said you don't grip it with your hand, else you might break your arm should the motor jerk the crank away. Never did it myself.
Fewer people know how to use carbide lamps too.
It looked shockingly capable off-road though, which I guess makes sense if you think about what counted for a road in the 1910s.
Speaking of, there's a good book (although I admit I've barely started) called "American Road" by Pete Davies which draws a vivid picture of what roads were like and the politics involved in even deciding whether government should be involved in road building.
Its primary goal is describing a military motor train that crossed the country in 1919 (and may well have been a key opportunity that kept Eisenhower from leaving the military...history has some fascinating turning points).