Trainz Mesh Viewer 2
This program is able to display complete traincars and textured meshes.Features:
Zooming and rotating - object can be viewed from any angle
Mesh data display - displays information about the mesh
Bump mapped meshes can be viewed - attachments can be viewed seperately
Texture Locating option
Graduated axis
Completed traincars displayed on length of track and textured groundplane
Current version is 2.29, released on the 8th of February 2016.
Download it from here
Previous Versions
Version 2.27 - download from here
Version 2.23 - download from here
Version 2.24 - download from here
Version 2.25 - download from here