Ural Kombinat AM-773

Ural Kombinat AM-773 is a cargo locomotive manufactured by Ural Kombinat in the Cyberpunk 2077 universe.

Overview
It is a locomotive used in the mission With a Little Help from My Friends, One of the characters explains that it is powered by nuclear, very similar to what's used in our submarines.

Technical specifications were provided on the Shard called Ural Kombinat Locomotive: Technical Specifications.