The other day we told you about a mysterious Tweet shared by Tesla founder and CEO Elon Musk. With a teaser image and a promise to "unveil the D and something else" on October 9th, Musk's minced words created quite a stir in the automotive community, with whispers of a new model, maybe even a sports car, underway. Now, thanks to a picture posted in the Tesla Motors Club forum and some info from Edmunds, it seems this "D" will actually just be another letter added to the Model S.

The pictured Model S is branded as "P85D". And while we still don't know exactly what that means, Edmond's Tweet from the Paris show also helps to put this in context: "According to the guide there's supposed to be an all-wheel drive Tesla here at the Paris Motor Show. There is not." It seems likely that the "D" will actually be an all-wheel drive version of the Model S, to be presented later this week. Now, what about that "something else?"