I used to ride the Muni buses in San Francisco. They have the power lines that they use overhead. I talked to a guy who repaired them. The electrical motor for

I used to ride the Muni buses in San Francisco. They have the power lines that they use overhead. I talked to a guy who repaired them. The electrical motor for buses has to be a lot lot lot greater than in a passenger vehicle like this Ford truck. He was saying that the engines, if used at full power, could break peoples' necks if there was no kind of head rest behind them. Don't know if it is true or not, but it was a good story if it wasn't. Never forgot it.