Originally Posted by maddox

I checked this MPG,

50 liters per 100kilometers is almost 5MPG
30 liters is 8MPG

organizations that tested something have no idea about the things

Oh no, I don't live in the car, a small trip in Gemany is 1000km one way from Vienna. Even though the speeds are high, the time needed to go from point A to B is not that short, because I need to refuel every 200 kilometers. I am sure a quick diesel car would go faster from point A to B because they refuel like every 600 kilometers minimum.