Remember how Doc Brown got the DeLorean to 88 mph by pushing it with a train running on coal and “booster” logs? It makes me wonder what other realistic methods could be used to get a car’s wheels to spin that fast, considering the limitations of the 1700’s (pretty sure it was the 1700’s…).
How about using that big laboratory/barn he had to set up some kind of roller system that the DeLorean could sit on? The rollers (made of wood, I suppose) could be powered by some sort of pulley system, using some other force for power (like a coal-powered crank shaft). Wouldn’t the right kind of power transfer make this method successful? What other ways could it have been done?