Not really. The state of the art will get you a self driving car, just not a very safe one. Think more 1995 CMU Navlab and less anything that would ever be approved or marketed to the public. Self-driving car technology is 20 years old. Self-driving car technology I would be willing to trust my life to is... well -2 to -5 years old at best.
Sure. But that's not the kind of thing a IoT hacker would consider a success. Someone might be content, however, with making a mod for Tesla that can e.g. follow "complex" paths of bright orange cones in a parking lot. Test it there, without being in the car themselves and put it on GitHub for bragging rights of having made a cool AI+Systems project. The problem is then someone might see that "cool hack", think it is more than it really is, and kill themselves turning it on while on the highway...