Edward
Elio Addict
I think outsydthebox's remark was more that they designed the engine specifically for an aerodynamicly designed three wheel car. If you put the engine in a Smart, it is going to have much less fuel economy and probably perform like a dog.The engine doesn't care if it's in a car, an aircraft, or a submarine. The only thing relevant to the engine is how much load is on the output shaft. So long as it's used in an application with a similar load characteristic it will have similar performance. If it spins a bearing or throws a rod while driving a generator or a water pump within it's designed load range, there's no reason to think it would fare any better turning a transmission input shaft.
And the only thing they have actually built is a 'mule' which looks something like the final product, has an interior that might be similar, a dash that probably won't be similar, a suspension that won't be quite the same, an engine that certainly will NOT be used, and handling and performance characteristics which we are assured indicate NOTHING about the final version. Prototype? It's a marketing brochure with wheels. Not that there is anything wrong with that, it just is what it is.
My understanding is that they have been touring with a display model of the engine as well.