[backwoods-engineer]

700 miles to the gallon, and doesn’t go anywhere near my home or where I work. Absolutely. Useless.

[Notary Sojac]

You get 700 mpg only if all the passengers can be magically teleported from their homes/businesses to the rail depot.

Add up all the cars and buses driving to the station and back again - the mileage takes a big hit.