Soooo, 3 miles to a gallon? A bit steep nowadays.

Another website says they get 15 MPG on the highway. Max 62 MPH, though.

They are a bit tippy though.  They are designed for the narrow Swiss
mountain roads.
The same website suggests installing high-offset wheels to compensate for the tippy-factor, and to smooth out the suspension a bit. These things were designed to haul 10 combat -ready troops! Payload capacity is 1.1 ton!

Steve