Can someone fix this??? I am having a hard time with textures... I just need some understanding with them. I don't want a link to help I need someone to explain it.. - - - Updated - - - HELP!!!
In your 3D model you have to assign a material (and you will be able to choose a material colour). But it's usually much better to use 'textures'. To do that you will have to UVMAP your model and then create a an image texture for it (Plenty of tutorial on UVMapping out here). Then, when you export your model you have to create a 'material.cs' file (you can copy it from one of the official vehicle, delete everything but 1 material and modify it to match your model material). You can do that also from the material-editor ingame if you prefer, it will create a material.cs file automatically when you save a material in that case.