The files that define the vehicles, their models, and so on are all contained in the data files you have with the game. They are extracted using modding tools, although you may not be able to edit all of them, depending on which modding tools are available yet.
If you're looking for exported save data, that's another story, and I don't happen to have those.
Please clarify which you're after. Also, I'm moving this out of the "Adult Corner", since it doesn't need to be here.