Understanding that mapping the interior of the car would be a huge undertaking, what about the company's that have less than 5 or so cars. It really does add to the, "well we put it in to bolster the numbers" to say that the smaller manufacturers have a reasonable body model and no interior. I am once again forced to agree with Quality over quantity arguments.
Ps, I really don't need 12 variations on the MX5. If your trying to show the skill of your programmers show the features that GT lovers want to see.