I think you have misinterpreted my comment. Of course Tesla uses real world data. My claim is that their self driving system it not end-to-end. That is, it's n

I think you have misinterpreted my comment. Of course Tesla uses real world data. My claim is that their self driving system it not end-to-end. That is, it's not "just" a neural network that takes sensor data as input and gives steering/accelerator/brake commands as output. They take in data from all their sensors, fuse it together, and create a real-time virtual copy of the world. They do planning inside this virtual copy of the real world. This has been demonstrated in many Tesla presentations. The FSD visualization on the screen of the Tesla is itself a depiction of the virtual world being constructed from the sensor data.