A simulator where you can interact with different cars from Tesla Motors. But please be careful because Tesla is testdriving cars on their test track and across the parking lot..
I've also made a self-driving Tesla that is finding its way around a maze. You can test it here: Self-driving Car. And if you want to learn more about Tesla Motors you should read my free Elon Musk biography book (available in pdf, epub, mobi).
...and follow me on Twitter: @eriknordeus