as far as I'm aware what some Ferrari owners have started doing is purchase the after market ODB type of tool that lets you run the same diagnostics that Ferrari dealership does for several hundred dollars. The tricky part is that it voids warranty and you could very well brick your car.

However, it is great for people who wants to work on their own car and resell value isn't really a concern.

Adam saruwatari on youtube shows it in action.