First attempt at a flywheel drive is approaching testability. I'm going to try it before I make a car for it.
The cop out is a multi speed freewheel on a jackshaft. Internally geared hubs are too weak for this application, I think, except the specially made mountain bike type, which are big bucks.
Anyway, if I eliminate the flywheel, I think I'll make a more low slung looking car with chain final drive, after all.
I think I've solved the problem of making the front axle, and steering knuckle biz, too.
And, at least this isn't politics, right?