Not in the way that most people think of “hacking”, where some teenager or twentysomething thousands of miles away taps away on their laptop in an Internet cafe and gains control of your car. Never going to happen, and do you know why?
Because your car is not a wireless device, like a PDA or a laptop. It may have computers in it, but they aren’t networked together in the way that we think of a computer network. That’s why.