I picked up model S recently and it has only 600 miles on it so far, runs smooth at low speeds , just noticed this week when I go at 65 mph or above I notice weird noice coming from battery ? I can feel the vibration even in my driver seat. It typically happens when I accelerate, It disappears after few 30-40 seconds, comes back again Annoying to drive like that. I called customer support and waiting to hear from SC. I am yet to receive update on their new auto pilot hardware. Any ideas Thanks in advance.