@Harry Parker The main problem of a smaller diameter hub motor, I think, would be the additional cost of developing it. Frankly, I wish they were going with a smaller diameter hubmotor, and higher profile, narrower tires worldwide. I guess I am fairly European in my indifference to sub-10 second 0-100 times.
Tangentially to the whole issue of compliance with European autocycle regs, I wonder, if Aptera were to meet all the automobile safety regs, would complying with autocycle regs even be necessary? Is there any reason a three wheeled vehicle can't be regulated and registered as a car? The width would still be an inconvenience on European streets, of course.