A recent profile on J B Streubel coming back to Tesla as a board member dropped the enticing bit of gossip that the first prototype Tesla Megapacks were install

A recent profile on J B Streubel coming back to Tesla as a board member dropped the enticing bit of gossip that the first prototype Tesla Megapacks were installed in the Tesla car park and after a couple of months someone had to explain to Elon what they were and he instantly demanded the project be shut down to focus on the cars. And everyone ignored him.