I don't think your cars are all white, er, am I right? (damn rhymes)
I can remember that everytime you spawn one of your vehicles it can and will likely spawn in a different color then the last, well unfortunately, that doesn't appear to be happening anymore, for example, I can spawn a hudson, 12 times, and all 12 will be white, I don't think it should be doing this, is their some kind of problem here?

Edit : Forgot to just say no, the Hudson wasn't the only one I was trying to spawn in a different color, they were all doing this, strange behavior.