Tesla has stated publicly they believe that within three years their cars will be capable of full autonomy, and expect it to take another two years to receive regulatory approval. By fully autonomous they state you will be able to walk outside, have the car approach to meet you, it will open and close the door for you, you can fall asleep, and several hours later wake up at your destination. Yes, Tesla is taking an i…
That means that Google is happy with cars that only work most of the time, and only goes to some routes, as long as they are fully authonomous and reliable when they work.
Tesla, by its side, is happy with cars that are not fully autonomous, as long as they work every time, and can go to any route.
Of course their products are different, and they'll not become alike if none of them change their business.