Here are some interesting

[ucodegen]

Here are some interesting numbers:
TMPG – mpg to move 1 ton, or how many miles can you move 1 ton using 1 gallon of fuel.

Hybrid car:

Weight: approx 3000lbs (1.5 ton)

MPG: approx 50mpg @ 65 (less at 80 – engine running closer to limit of performance to gain mpg) less than 45mpg at 80.

TMPG: 75 tmpg

Corvette: (its quirk is that it gets better mpg at 80 than 65.)

Weight: approx 3000lbs

MPG: 29mpg @ 80

TMPG: 43.5 tmpg

Semi – loaded:

Weight: 60,000lbs (30t)

MPG: 7 – 10mpg – dealing with the newer ones.

TMPG: 210 tmpg using 7mpg.

Train:

TMPG: over 400 tmpg – note, most rail runs around 80mph outside of cities.

https://www.aar.org/newsandevents/Press-Releases/Pages/The-Nations-Freight-Railroads-Average-476-Ton-Miles-Per-Gallon.aspx

It will be hard for cars, autonomous or not, to beat efficiencies of trains(provided that they are loaded). This included EVs and their claimed 100mpge.