Getting the a.i. to use your skins
This questions crops up at regular intervals on a number of forums. The answer is simple enough, this is how you do it.
1) Go into the options menu where you can rename each of the 12 a.i. drivers.
2) Give them all names.
3) Go to Garage.
4) Click New colour scheme button, name it exactly the same as the name you gave your first driver.
5) Then select the skin texture you want that driver to use.
6) Repeat for each named a.i. driver.
Whenever the driver is selected to race, they will then use the skin assigned to them in the colour scheme that bears their name.
You will have to repeat this process for each of the cars, but once complete, you don't have to redo it.
If you don't want to rename your a.i., then just create colour schemes in the Garage and call them AI 1, AI 2, AI 3, etc.