Chevrolet isn't hiding the fact that a new rear-wheel-drive performance sedan – called the SS and seen in full checkered-flag regalia above – is on its way to US shores, courtesy of GM's Australian division. Past its eventual existence, though, we've been kept in the dark. How much will the SS cost? Who, exactly, will it be marketed to? And, perhaps most importantly, what will power the 2014 Chevy SS?