Two Hemis? You'd have to turn the motors off at the gas station so it doesn't get ahead of the pump.
Too true doc, too true.
The new 5.7 liter Hemi V-8 is a much more fuel efficient engine than you think. In most applications, the engine utilizes MDS (multi-displacement system) that shuts off 4 of 8 cylinders when cruising to conserve fuel.
A Chrysler 300C, Dodge Magnum, Dodge Durango or Jeep Grand Cherokee with the 5.7 liter Hemi V-8 get fuel economy near that of a large 6 cylinder engine.