GM is said to be looking at a different version of the Zeta RWD architecture for future vehicles. And hold onto your hats, one of those vehicles could be in the mold of a "Camaro muscle car." Zeta turned out to be too expensive and wasn't delivering what GM needed. The other options for GM are modifying either Sigma or Kappa to get a wider range of RWD vehicles. I like the idea of a slightly larger Kappa for a sportster that could take on the RX-8 and 350Z instead of the Mustang. There's nothing wrong with that. Oh, but you couldn't call it a Camaro of course.