technical information
M1A1:         face: 539074 tri poly   vertice:279049
Leopard2a6:   face: 665424 tri poly   vertice:334743
challenger2: face: 694511 tri poly   vertice:366916

High definiton, high detailed model with texture maps.
Maya file is the original file in which the preview pictures are rendered. The max files are converted version, which also have all the shaders with texture maps assigned correctly.