RE: Not sure if this idea is technically viable but LNG is definitely now being fully mooted in Ireland22 Mar 2022 09:07
MEM - Looks like we crossed in the post!
I remember reading a study a few years back which examined to total lifespan carbon footprint of building, running and scrapping a car.
The most efficient was …… an old Jeep Wrangler. Terrible fuel consumption, but made of cast iron and mild steel, so easy to manufacture and recycle. Plus it uses fuel directly, no losses in generation, transmission, charging c/W batteries.
It seems to me CO2 efficient vehicles are probably small efficient ICEs, not enormous battery powered SUVs, or supercars.