I didn't expect so much controversy here, I just wanted to get a feel for the order of magnitude. I went with 2000 pounds for the car weight, which is the weigh

I didn't expect so much controversy here, I just wanted to get a feel for the order of magnitude. I went with 2000 pounds for the car weight, which is the weight of a 1976 Honda Accord - 1976 because of a search error on my part. 4000 pounds is the average new car or light truck, so that number is a bit high because of the trucks. In any case, the energy dumped into this experiment is like a big car crash concentrated into a tiny capsule. Anyone who has used a treadmill at the gym will recognize that it's a lot of work to burn off 400 calories. Not enough to get a car up to 140 MPH because the body isn't 100% efficient.