LFS comes with handful of decent skins per car but by default the AI drivers do not use them.
Instead AI cars only use cars in solid colors.

I think not many people know how to make drivers use the nicer skins.
The question seems somewhat common among players, so instead of trying to explain it via sticky thread ( https://www.lfsforum.net/showthread.php?t=12381 ) adding an AI should automagically make use of one of the nicer skins. Afterall the skins are already there, so why not make it easier for players to use them?
It is only small detail but think it makes big difference if the cars are all solid-colored or look like race cars.
For example watch any video of rift users starting out with LFS, there is always AI cars only using the solid colors.

You can set the AI to use your selected skins in the options, under the misc category.

There is also an AI skin pack that was pieced together by felplacerad, which creates color setting (.col) files for the AI names and the AI's automatically select those. You can also do that yourself by assigning the AI's name into the color.

https://www.lfsforum.net/showthread.php?t=26119

I honestly wouldn't see a point in making it automatical since the skins that come with LFS are limited in quantity, and mostly because LFS's strongest points is it's online gameplay.

Yes, I know all this
The point is that new players should be able to simply click "add AI" and have a more interessting looking grid of AI cars, without having to think about it.
Instead of going back & forth or messing around with text files. It is just one minor detail that makes it a bit easier/nicer.