This is where they came from:

Can we run the AutoTrain in our game? Safe for the closed auto carriers, I think every car is available, including the Super Domes.
13 years old and showing it:

A phosphate refugee, with a Mate ( a.k.a. road slug) to haul heavy phosphate trains out of the Floride peninsula.

Stealthy as can be:

The final incarnation:

PS: Massachusetts Call Volunteer Firefighter's Association (MCVX) has her training train piloted by this loco, which is actually an empty shell.
Sold off to a regional, hand brake pulled taut.

I like those pug nosed U-boats.