From a cyberpunk inspired universe, a steam boiler spins large flywheels, the flywheels turn a generator, the generator powers the electric traction motors. Known for the best torque and highly efficient in her day. My first attempt at a train, 8 stud wide with some bits pushing it to 9 wide. Having a hard time getting the front wheels to operate smoothly, especially for r40 tracks, still kinda hops around when moving but otherwise works. UPDATE*** It's a 4-4-4! Thank you those who helped me...