Re: GM Should know the market anyone remember the EV1
Personally, I'd hope that I'd never find myself out of juice for the motor, but the sound system still works great. Keep in mind that an additional battery for the entertainment system is going to weigh the system down more, and so will decrease the car's overall efficiency.
In any event, these same gadgets decrease your range in a gas-powered vehicle also - your car has more power generation capability in the alternator than it would need just for the engine, so that it can play your radio, run your headlights, and keep its passenger compartment comfortably warm/cool. Worse, it's balanced so that, on average, it's generating more electricity than the car is using, This is done so that your car won't possibly run the battery down because you wanted to drive with the lights on, the wipers on, the rear defrost on, the heater on, and the radio on. After all, it wasn't possible to design the car such that it could easily change the power generation based on any realistic potential power use change. Having one alternate setting (for if you want the A/C on, as it uses the most power) is the most I've heard of cars having.
The only real differences are that with a primarily electric car, you are much more aware of that cause and effect, and in the primarily electric car, shutting off the radio actually helps.
Still, it would be nice to be able to jack into the radio system, and turn off the big speakers.