I wish I had held onto it, but there was an article released last year, maybe in 2020 about the paint shop at SLP. It is so advanced that the process to perform individual paint per car in line is as simple as changing a few cartridges. No joke! I am not making this up… maybe someone can locate the article? I have not had much success, but I also did not spend a whole lot of time looking for it either.
Below is an article re the SLP Paint Shop yet nothing specifically relating to individual paint.
German engineering firm Dürr delivers first-of-its-kind paint shop for BMW Mexican plant
https://mexico-now.com/german-engine...mexican-plant/
Edit: The G20 330 & M340 have the option for individual paint. So… SLP has the availability.