The Acceleration at Aptera
F = M x A (Fun = Motion x Aptera)
Most drivers associate sports cars with driving fun, which usually means brisk acceleration, powerful braking and nimble, crisp handling.  Not surprising to us, the same things that make a good sports car are generally found in a very efficient vehicle — like the [...]

1. the state or quality of being efficient; competency in performance.
2. accomplishment of or ability to accomplish a job with a minimum expenditure of time and effort: The assembly line increased industry’s efficiency.
3. the ratio of the work done or energy developed by a machine, engine, etc., to the energy supplied to it, usually expressed [...]