Other ways to reach 88 MPH?
I'm sure this has to have been discussed over the last 30+ years, but what other ways could Doc have tried to get to 88 MPH?
My idea would be to rig a rope and pulley at the ravine and drop a large, heavy object into the ravine at the end of the tracks. The falling object would pull the Delorean at the rate of the freefall.
According to online calculators, it would need about 4 seconds to reach 88 MPH in about 268ft. Of course, you'd have to account for friction/drag, but that wouldn't change the calculation that much. It seems like a much more feasible plan than the convoluted train hijacking and steam engine overclocking.
What else would you have tried?