good try but not good enough if compared german engine, if can exert >150hp then i think is very good liao

small turbo engine also got limit, cos at the end of the day energy conservation is more important, you can only get so much out of efficiency to move a car, but we also need to recover kinetic energy from moving vehicle also since already paid with fuel to get it moving, so hybrid is still way forward...

i remember lotus did a range extender engine with 50KW right? to power the pure electric vehicle on gas if needed..  that would be interesting as well.