Motor Trend 2015 Truck of the Year

BenK wrote:

...
Remember, the most efficient ICE today is a 2 cycle diesel. I know of no current
production 2 cycle diesel for automotive. 40%...meaning of the potential energy
in a unit of fuel (diesel or gasoline), the 2 cycle diesel puts down to pavement
40% of that potential
...

Not in production yet, but still ...
Scale this up a bit for trucks ...