16 MPG, I'm impressed!

[theking]

Because that doubles the range and in many cases that triples the range  :

New International SuperTruck II Prototype Semi Gets an Impressive 16 MPG

However, the new Navistar International SuperTruck II prototype takes a holistic approach to efficiency and gets an impressive 16 mpg. In a passenger car, 16 mpg is pretty dismal. However, the typical semi truck gets anywhere between 5-7 mpg, so 16 mph is incredibly good.