Thanks for the input guys.
....So is it a no brainer to do something like this? what am I missing?
Yea, I've kinda wondered about different scenarios.
...1 > regearing it and using an electric motor to drive engine accessories.
...2 > regear, and using a drive assist motor to drive 1 or both rear wheels. At what speed though? Just at take off?
...3 > regear, and using 1 electric drive assist for take off for 1 wheel, and another for high speed to drive the other wheel.
... I understand from what I've read on this site, that its not reasonable to drive my car at 70+mph on electric current. What I have in mind for the high speed is just a motor that would help it to maintain speed on a slight downhill.
...BTW, my Volvo has a dc of .32 according to this site. With a few mods, easily into the .20's. ( the stock 850 T-5R has a drag coefficient of 0.29)
Volvo 850 - Wikipedia, the free encyclopedia
...I had also wondered about some alternatives - compressed air, or flywheel, or HHO, but from what I've read, I'm not convinced of much real gain with any of those.
Again, any comments, advice, ideas, or corrections are welcome. I'm here to learn.
ps. the longest coast is just a little more than a mile