[pdonis]

> Yeah, or if nothing else install a button for the driver to engage regenerative braking when he knows he's going down a hill or coasting to a stop. Have the regenerative braking turn off if the driver touches the real brakes.

Just a button wouldn't work; how would the system know how much braking to apply? You would need something with variable input. Even then it would require considerable practice, I think, on the driver's part; it would be something like trying to control braking with the parking brake while the vehicle is in motion (which I have had to do on one occasion when my regular brakes failed--it's not at all easy).