Yes.

Do their caps hold 10x the energy at 1/10th the weight of a lead acid battery?

Yes.

of oil dependency

Do their caps hold 10x the energy at 1/10th the weight of a lead acid battery?

Yes.

“A capacitor can discharge and recharge far faster than a battery, making it ideal both for generating bursts of speed and for soaking up the energy collected by regenerative braking. AFS Trinity, a company based in Washington state, has turned that insight into a piece of equipment that it has fitted into an otherwise standard production model as an experiment. The result—the XH-150—was unveiled at this year’s Detroit motor show.”

The story contrasts this approach vis a visa EEStor.

Well worth the read…

What we really need is an electric motor that mimics a bored-out hemi. That you can hear the thing being coaxed to life, warming up, catching its rythym, gunning, pulsing and purring is a very important part of our love of the wheelchair (car). Its like the thing’s alive and we love that in our machines.

Conversely to purring, an electric is likely going to elicit a constant whining (See/ hear demo videos). My bicycle with a cardboard flapper on the down-frame turned it into a motorbike, maybe its as simple as that; eats a few km’s but sure adds sex-appeal. They could also likely do some reverse-phase audio trickery to get rid of the whine, as in Bose’s noise-cancelling headphones. At least for inside the cabin.

This is something the Aircar doesn’t have to confront; since its a piston-pumper it likely has some rythym, though the air-tools its based upon sound like dentist’s drills.

A Ferrari or Lambougoisie or any Formula-1 type (high revolution speed as normal) engine is beyond a whine and into a scream, so here my speil hits a wall attempting a corner, since that whine is associated with desire. But then there’s a tradeoff with everything; extreme performance yes -climb a curb no, limiting the ubiquity of such machines; being by their very nature not for the masses.