I really hadn't thought about Glasurit
The BASF/Glasurit system will have, without scanning, a built in formulation for all the MB colors. From there, the astute painter will fine tune the mix, because more often than not they are not repainting an entire car, but refinishing part of a car, and making things match is critical.
Last year, I had a little sill work done but that required painting the entire front clip. 568G, Signal Red. They mixed the formulation from the paint system, and then the painter fine-tuned the mix to compensate for slight shade variations. Even with that, they said that painting a single panel would yield, in the right light, the difference. Thus, they couldn't really paint just the sill, or the sills and the hood (with any measure of quality, or be proud of their work) but had to do the entire front clip and even blending it into the doors on either side to prevent a contrast. They did a spectacular job, but it all started with the factory spec paint mix for 568G, not a scan of the car's paint. When I say spectacular, that means there is no evidence that there was any [additional] paint work done on the car since its original repaint during the restoration 15+ years ago.
Again, I'd suggest finding a BASF paint mixer and see how that goes. They can mix up very small quantities (I have a half pint can, by the way) just for the purposes of testing.