Elon Musk's Tesla Motors remotely downgraded the firmware on a vehicle owned by attentive owner Jason Hughes. As an attentive vehicle owner Hughes had earlier investigated a firmware update and found information suggesting a new Tesla Model S variant with a larger battery and shared the results of his investigation with the world. In what appears to be a retaliatory move Musk's firm downgraded his vehicle firmware remotely, a move that was subsequently noticed by the attentive Hughes.