If you're working with a hybrid gas/electric vehicle you could use the turbo spin to help recharge the batteries. Lot's of things you can do with extra power. One of the problems with cars today is they can pull more electrical power than most can provide. My Montana's ABS system was a perfect example - the headlights would flicker in sync with the ABS pulses. Just too much current being drawn by the ABS to keep the headlights at full intensity.