[Joe Bonforte]

I suspect it may be hydrogen peroxide powered. There are small engines, originally developed for helicopters, that put out a lot of horsepower in a very small space, and with no moving parts. The problem with them was that the catalyst used to get the peroxide to break down only lasted for about five hours of engine usage. If this guy has solved that problem, he could build a scooter the size and weight of a suitcase. It would have a fabulous power-to-weight ratio, and should get reasonably efficient mileage because it burns no fuel when coasting.

[eno_]

Excellent call on the peroxide. I'm no expert, but you could make a Sterling engine that way, I think.Makes your teeth white, too. Just the thing for that important date. What are the combustion products?