On the railroad the big concern is tonage miles per gallons. If you apply this to a 7200lb Mega cab at 19mpg and a 2765lb Prius at 48mpg the Megacab is moving 1 ton 68.4 miles on one gal. The prius moves 1 ton 66.24 miles on one gal. Now which one is more efficient ? I think i just became a tree hugger. By the way the Union Pacific Claims it avg 1 ton over 600 miles on one Gallon.
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07 2500 Mega Cab, 6.7L 6spd man. 3.73's w/ anti-spin.