This is an engine, not a motor. Everyone wants increased HP/wt, which those provides. Diesel is ideal for aviation because of its energy per pound, but weight of the power plant has historically limited it's appeal. The sky is the limit for this. Likely military aviation, generators, and later boats are an ideal target because cars require (((blessing))) to enter the stage. I'd love to see Mazda make a licencing deal to develope and get this into their cars.