37signals has a beautiful mockup for what the future of a web-based car interface might look like. But unlike 37signals usual stuff, it’s not grounded in reality. Car companies need to focus on real innovations like cars that get 100 miles to the gallon before implementing any of this fancy stuff.
Having said that, though, we test drove a wagon with a built-in DVD player yesterday. Not a requirement, but it sure beats trying to find a place to prop up the PowerBook to watch a movie on those long trips.