Alright. First of all, I'd like to apologise for double posting
Here's the Gtest.tim map:
Now, about the map.tim files.
Most of them are duplicates, and strangely enough, they're not all the same quality.
The license test ones are all dropped in quality. Here's a comparison between the Pikes Peak map and the Pikes Peak downhill license test map:
Not only is it dropped in quality, but the inaccessible parts of the track are chopped off the map itself.
Unused reverse versions of Laguna Seca, Super Speedway and Test Track also have their own separate maps, although they suffer the same quality drop that the license test maps do.
That's all I have to offer for now. I am not sure if I'll explore demo maps, as I'm not even sure if they have any.