I don't think the electronics or coding will be the limiting factor in determining whether a car will be a collectible or not. In fact I would go as far as to say that it might be the very reason cars will be a collectible. Think about two things here, firstly I remember when I had my e30 people were afriad that the technology had gone too far and that tings like the service indicator lights were out there technology! Secondly techno geeks have been collecting old electronics for years, like the Apple 2 for example.

The bigger problem will be the biodegradable plastics and the associated laws are what will kill the cars prematurely. They are literally going to be more and more disposable.