Box Car
Stock Car
Tank Car
Silver Tank Car
Chemical Car
Triple-Dome Tank
1860 Freight Cars
Caboose -Streamline Cupola
Caboose -40ft.
Reefer Car
Billboard Reefer
Old Time Reefer
Operating Hopper Cars
Pulpwood Car
Cable Reel Car
50ft. Box Car
50th Anniversary Box Car
Bicentennial Box Car
Commemorative Box Car
Super Hero Box Car
Billboard Box Car
Old Time Box Car
Flat Cars
Log Transport Car
Hopper Car
Billboard Hopper Car
50' Flat Cars
Container Flat Car
Piggyback Flat Cars
62ft. Hi-Cube Box
Center-Flow Hopper
Covered Hopper
Express Reefer
62ft. Box Car
Hi-Cube Box Car

Super Hero Box Car
No. 368-B -1978 Release

Super Hero Box Car
No. 368-D -1978 Release

Super Hero Box Car
No. 368-A -1978 Release

Super Hero Box Car
Wonder Woman
No. 368-C -1978 Release

Found only in TYCO's 1978 catalog, the Super Hero Box Car was numbered in the 368-series. The car's shell and underframe are the same as the 50' Box Car (339-sereis) that TYCO had offered for years.

This set of four Super Hero Box Cars is very popular with collectors from my experience, though none appear to be any more rare than any others in this set.  All of the characters depicted in the series are DC Comics properties.