The big question at present is what is going on at EESTOR? The EESTOR device sounds like a car which could go 200 - 300 miles at highway speeds and then take five minutes to recharge a device which would never wear out or die and it should have been out by now. Other similar devices are presently being used for buses in Hong Kong but I don’t think they have that much range and a bus wouldn’t need that much range.
I think EESTOR peaked a bit early on the hype. I've nothing against the company but it needs to produce a product.