Starting this thread for all the inevitable conversation about non-fossil fuels - electric, hydrogen, synthetic, fairy dust etc., starting with this.
As this is a workshop thread let’s keep it reasonably practical rather than opinionated.
You didn’t mention shanks’s pony he he 
That would come under biofuel. Range anxiety being the main issue. 
Yes range is definitely a problem for me
Paint THINNERS! As a lad I used to run my RELIANT REGAL SUPERVAN lll on it as I oiked out of work!! Now is that bio?