Based on what we know on the Cybertruck battery, working backwards leads me to believe the 4680 MY AWD was an engineering testbed for the Cybertruck. Usable battery on the MY is estimated to be 67.5kwh. Usable on the CT is around 130. 2x67.5=135. Using 2x MY 4680 400v batteries gets you to 800V. Seems awfully coincidental to me. It wouldn’t surprise me to see a tear down of the CT battery show it is essentially 2 of the MY units wired together.