Terrible idea? It's the best thing since sliced iPhone. Keep in mind that the "car" is usually driving itself; that's a much higher level of solving the "silly human takes eyes and hands off road" problem, which makes what Mazda is doing seem, frankly, short-sighted (disclosure: although a Honda/BMW/Tesla fan, I've always secretly cheered for Mazda because I like their driving "DNA," and if I ever buy another non-EV again it might just be an MX-5 NA or NB for autox/track use). Now, of course, they're _currently_ not in the same league, but this stuff is getting cheaper (technology! heck yeah!) and these changes should be a look toward the future. All of that said, I don't feel like there's anything wrong with the move they're making, just, again, doesn't seem terribly forward-looking -- other than that, it's perfectly fine.