Car texturing (couldn't think of a funny name)

Now I know this isn't impressive to every body's ridiculously high expectations, but I'm still at the beginners stage. Now the car it's self was already modelled, as it was used like a tutorial to show us how to do a more advance type of texturing. (that's why the car has no wheels, because if it was up to me I would have put wheels on it,.. Oh well, just refer to it as a future hover car) To do this you have to put a modifier on a model, called Unwrap UVW. And then just import the unwrapped model into Photoshop, and through a few effects like overlaying just simply decorate the texture and re-import the finished design as a bitmap texture..