You shouldn't text and drive, but iOS in the car is aiming to make phone usage on the go a little less deadly.
Combined with some Siri updates including integration for settings, and web searches as well as 3rd party apps like Twitter, and Wikipedia, iOS in the car is about as close to an Apple vehicle as you're going to get.
You're not going to be able to use it quite yet though; you're going to have to wait until 2014 when compatible cars with the right kind of screens start hitting the market, but Apple's already got some heavy hitters on board.
Now if only it'd drive for you too. But no word on that...yet.