All motorcycle mechanics have a sign "speed costs money, how fast do you want to go". It isn't a joke, most of them can get as much power out of a 500cc motor as industrial engines get out of 19 liters. The catch is that you have to rebuild the engine every 10 hours of operation, while the industrial engine will run non-stop for many years.
Sure they do, run away engines are a real problem. They will sometimes start using their own oil as fuel, and at that point you better run. (modern engines have safety air shutdowns)
