The most recent update to the car broke a few things, namely tyres and DDS naming.
Firstly, if you've installed the update and your liveries no longer work (such as the pack from @StoffelWaffle ) - then all you need to do is simply rename the "main_d.dds" file to "car_paint.dds" in each file. Hopefully the creator of the pack will update this their side!
Secondly, this resource fixes the following things;
1. Text and banners placed on glass "bleeding" through each other, causing horrible visual artefacts.
2. Reworked rim and tyre textures.
Install the tyre and rim textures to the specific skin folders as needed.
It's nothing major, but much needed.
Enjoy!