TurboLlew
Honorary ///Member
...Now we have such detailed ECU tracking that god only knows what BMW (and all of them really!) can tell about your driving...
Judging from this (and the MANY lines and details after this particular excerpt) and the degree of accuracy of the rest of this data (which I can't share most of LOL), BMW can probably tell the velocity, pressure and duration of the driver's fart at the specific time and location accurate to 16 decimal places along both lattitude and longitude. They will also know whether the driver moved to the side in the seat in order to release said volume of gas, and what change in the orientation of the vehicle took place as a result
Jokes aside, the new cars collect a mindblowing amount of vehicle and driver-specific data.

This data is not stored in the car
This is collected in real time, sent over the air and stored on BMW servers...
So yes we are already there.
As to complexity, it is definitely more complex and more potential for tuning, but also easier than ever to diagnose and repair. There are also many safety measures built into these cars to protect against catastrophic failure (and this is I guess a driver of the 'sceptical' attitude that they take when it comes to big claims these days.). Either way, there are different factors at play between the generations. If anything, it was probably more expensive to fix an S54 than it is to diagnose and fix modern cars which have MANY more parts shared across models. Modded cars in prior generations were more difficult to challenge claims against... but with the ability to collect the data and store it at scale to give them the 'confidence' to challenge a client that comes in and says "the car was idling and suddenly ran badly" when visually there is a piston sticking through the block.
