kidrock, don't get too hopeful on that manufacturer info. Keep in mind that in order to distribute it with the game it has to be released under an open-source license. I imagine that even if that made it past the marketing department the legal department would not be too happy about licensing data about their cars to "just anybody"...
Well we just couldn't distribute the data with the program. It would probably have to be in a separate data repository marked "non-free" or something, could be accessed with the data manager app we're working on.