Maybe this is already occurring and I just don’t have a new enough car yet, but just like how software on your computer will report back crashes/bugs, so that the programmers can fix their software….. Cars should do the same. They should have an ability to connect to a Verizon network or other, and upload bugs/reports/etc, so that the engineers at Nissan can make a more superior vehicle the following year. Or to fix/upgrade that car in the future — maybe they realize the brakes are real bad for that model, they’ll realize that faster if all the cars are reporting that back to them.
I’m going through the past few years of ideas that are in my moleskine notebooks. Some of the ideas are really lacking, but might give you an idea? All of these ideas are yours for the taking. Don’t forget my archive of 100+ web startup ideas.