autonomy hardware

My understanding is that current production includes all hardware necessary for full autonomy, but implementation of full autonomy won't happen for a year or so, depending on legislation, etc. If I got that right, does this mean new cars can't yet use the new hardware (i.e. it's to be enabled...

For level 5 Autonomous driving (driving without anyone in the drivers seat or in the car) Elon Musk has previously stated that the system needs to have redundancy on all levels. I can not see that this system has the required redundancy to achieve this. For instance there is only one computer...