How the Grail Engine Works
What if you were told that someday , your car could have a one - cylinder engine under its cowling that has 100horsepower , gets 100 land mile per gallon ( 42.5 kilometers per cubic decimeter ) , and can work on any type of fuel ? betting odds are , you ’d probably think that ’s something out of ascience fabrication pic , or that it ’s some variety of far - flung concept that ’s still decades off from reality ....