In general I agree with your points George, but if you consider the next generation of fuel injection then give this link a look.
Transonic Combustion | Revolutionizing Combustion Technology
My priority is powertrain improvements with capacitive, high efficiency, storage of inertia. My patent US# 7677208 is a result of my efforts to introduce this design to the automotive field.
Combine the Transonic injector and a capacitive regeneration capability and you will see very substantial increases in fuel economy. An additional advanatge of the patented desgin is a virtually unlimited final drive ratio and the elimination of throttle control of the engine. It either runs at open throttle or shuts off while thevehicle uses the stored energy from an accumulator. With this system you also have automatic compensation for any and all aerodynamic improvements.
I tend to keep my posts shorter than I used to to avoid a time out and loss of data.
regards
Mech