I've known about Comma.ai for quite some time and am familiar with George Hotz's work. I own a Gen 1 and would love to get Comma.ai working. My main curiosity is how they achieve functionality with just front-facing camera. Don’t they need a 360-degree view, especially for automatic lane...
We can get similar type of data for free if you're using homeasssitant (Opensource). https://github.com/bretterer/home-assistant-rivian, I am sharing this for of FYI and it might not be for everyone.