That's astonishingly good. It's great that they think they can do better but bloody hell.
It's indistinguishable from magic.
Many car engines have an efficiency of around 20% for example, as compared to the maximum theoretical efficiency of 67%. If car engines performed only well enough to meet your standard of amazingness, your gas costs would be 7 or 8 times higher. Or if you used a modern Toyota engine for comparison, something like 14 times higher.
Obviously I took an example from a different sphere for comparison... if you really find this to be an astonishing result can you elaborate?
But in true there are production cars that pass 430 km/h, resulting in a factor of about 2.5 millions. A lot less than 10 millions.
sun -> mj-PV -> battery -> electric motors run circles around those.
Says the person who can't even photosynthesize!
As a trite comparison, it's a similar to arguing the theoretical maximum speed that a person can run. Interesting, but doesn't tell you anything about the maximum speed that a person can move.
The speed of light in a vacuum, though, is qualitatively different. It's not a local maximum, it's the global maximum.
Anyway, I reserve the right to be impressed. I spend enough of my life being jaded and cynical. Sometimes I see things like this and it makes me think about stuff that I take for granted.