No templates came with the mod, but painting should not be that hard without them. CM can always tell you the texture name of any part you want to paint, or maybe CM can show the mapping too."CM" ? . . . content manager?
Can you elaborate on the method here with no template?
Not so much for a template, I think you'll just have to go off an existing DDS and hope you can keep track of what maps where.
Content Manger, using custom showroom you can click on parts of the model and see the material names and textures so you can see if there are any textures you can change for helmets or tyres or wing endplates or screens etc.
I've not used it myself but CM will also show the mapping of any texture, but when it comes on how to save this or use it I have not investigated yet.