Just as with computers, I'd wager most people don't give a crap. Most people use cars to get from one place to another. Hauling groceries, kids & whatever else. Most people use computers to check email, Facebook, pay bills, write letters and play a couple of casual games. In both cases, there are users and there are enthusiasts.
Sure, most people don't care about what the car can or can't do most of the time. Many new cars do not allow unlicensed people to repair the car. You need a signed key to do changes to the car, repair it, or adjust the engine.
In the end, most people will get the normal use out of their car. It might be a bit more expensive and inconvenient, but in the end it will be just enthusiasts that actually care about being able to install custom parts on the car, or adjust the engine, or for that matter do repairs themselves.
