[war1025]

Trains are electric motors powered by diesel generators. Seems like it should be an easy sell for people that whatever trains do is an effective way to handle heavy loads.

[steve19]

Submarines too!

https://en.wikipedia.org/wiki/Submarine#Diesel-electric

[noipv4]

The Mitsubishi Outlander PHEV can do this too (replace diesel with gasoline)

[slowhand09]

Trains don't do hills very well. Train tracks are always mostly straight and level. They do that extremely well.

[war1025]

And freeways have regulations about what the maximum road grade can be to prevent trucks from slowing down too significantly on hills.

That's just a law of converting massive amounts of kinetic energy into potential energy as the weight goes up hill.