Don't know if you read my post on multi-materials-on-one mesh, some time ago, but it is possible for you to define textures per polygon in the xsi, so you could design with nice team color go faster stripes in mind, rather than the all over colour of the originals.
This green colour on my avatar is team colour. It might require a bit of notepad adjustment to the exported xsi and using 2 textures, one without a c0 version.
Make a renamed copy of your original 00 texture and a second material in max, apply to selected areas. Export xsi, Load in game and see that it did not work! team color is all over or not at all...
Open xsi, find the long vertical list of 0000's, it should now have 111,s in it too, defining the material for each polygon, swap all 0,s for 1,s and 1,s for 0,s...might need to swap textures in the 2 materials now defined in the materials section too.
Yes this is all a bit WTF? but I guess its got something to do with the order in which meshbuilder applies team colors to the mesh. Load model again and now hopefully the team color texture will only appear on one of the polygon selections you made in max.
The Silence continues. The War Of Lies has no end.