Wow, i hope that's the way movies are consumed in future. The ending is a nice cliffhanger, can't wait to see how it continues.
You did an awesome job transporting this mysterious atmosphere. It's really believe that you are sitting in this car (everything grabbable, seeing legs, brother is talking to you). Also great voice actors (are they AI?) and a fitting soundtrack.
All in all a great entry. Even though it was not really a "game", i enjoyed every second :-)