I clicked 'Export All' in the ERP Archiver, and that seemed to work and export them in the correct sizing (the mercedes_paint file was 1024x1024), unlike for incardriver when it exported them in a smaller size. However, if I tried exporting the paint file in the normal way, just exporting that file, it didn't seem to work.What did you do???
Edit: However, the driver numbers seem to have been made smaller. I tried opening 77, so I could make a mod to make his number blue like it is, but it's tiny and blurred, it's 8x4 pixels.