The end of the combustion engine as we know it?

[RetroPug]

if people stopped trying to re-design the internal combustion engine and actually put that amount of work into alternatives, we'd be alot further towards close-to-zero-emissions transport, if it works leave it alone

The engine in your car is the result of significantly more than 100 years of continued innovation and design work on ICEs.
Petrol engines worked 100 years ago but they were very, very shit.