[cbertoldi]

That was true and it might be true for most of the production process, but as you may read in this article https://arstechnica.com/cars/2023/02/mercedes-ceo-tells-ars-... they are actively working to change and speed up the software development process:

Källenius explained the current system to Ars Technica like this:

    "So some engineer in Sindelfingen comes up with a concept. You have to write that down. You have to send it to the supplier that needs to be quoted. Then procurement people need to negotiate with each other. Then that supplier goes to some sub-supplier in Eastern Europe and wherever they do. It goes back up the chain again. It gets tested and nine months later, you have actually changed something in your infotainment system. Now you go into the ESH [Mercedes' electric Software Hub]. To say, let's change this and you just do it."