Update
Tires and Foliage
This week I've managed to fix all the artifacts on the tires, I've also opted to use the mobile textures for foliage. Some of the rim textures are in pretty bad shape, two of them had to almost be completely recreated (top and bottom tire) while the others needed some minor changes.
The foliage is a different story, i tried to fix the blurring artifacts on edges but ended up trimming away most it as a result, I opted to try the mobile textures which looked much better, only 2 of them had to be up-scaled to match the size of the AI ones.