Vroooooom. well, more accurately, shhhhhhh. That's a Tesla Model S and its sibling the Roadster (looking rather dashing in red, we might add) above, carving corners together as a family. What actual news do we have about these "premium electric vehicles?" None, we just thought this clip (after the break) of the two sleek EVs working their way around a closed desert track was pretty darned cool. The Model S and Roadster have posed for family portraits before, b