Posted: Apr 18, 2017 1:14 pm
Metal fuel is created when a metal is ground into a powder, which is then fed into a burner. It's so efficient that it releases as much energy as gasoline does — but more energy and heat is generated per litre of iron powder, compared to one litre of gas.
No figures given, but this implies you would need less than 8 times the weight, and certainly a lot less than the same volume.
Most new cars now are pretty fuel efficient, I have an SUV that can do over 1000km on 60l, I wouldn't mind a 25l tank that can take me over 500km, even if it weighs 200kg it would just be like having 3 passengers, and a much lower centre of gravity.