Ian_m wrote:

Best cars, maybe 18% efficiency, power stations lucky if 25%, fluidised coal
bed stations can reach 33% efficiency.

diesel engines are better. the most efficient non vehicular diesel
engine can achieve over 50% efficiency.

a demonstration 1 litre car was able to travel over 100km on 0.89
litres of fuel. in practice production cars can do 100km on 3 litres of
fuel.

shokk