Interesting. This stuff is so integrated I could envision a horde of problems resulting in the need for a software guru at each dealer, not to mention warranty disputes with the manufacturer.
My first car I paid 25 dollars for A 4 door Studebaker bullet nose, made in South Bend. I could work on that car : )
Imagine the scene at your local dealership:
"The engine, lights, trans, and turn signals work fine, ABS is wonderful and mileage is great, but my quadraphonic exhaust simulator went silent and I think it shorted out the outside temperature gage and seat heater.
Now I'm afraid to drive in traffic.