I call BS on the I-4 (LTG Ecotec?) -- I cannot imagine many buying any -- what is this now, a Cobalt Camaro?! Why would GM drop from 323 HP to 272 HP (based one the ATS offering:
http://www.cadillac.com/ats-luxury-sport-sedan.html ) for a base model, thereby downgrading it?!
Instead would imagine we will see the twin-turbo V6 make its debut on the Camaro, ala Cadillac ATS Vsport, along with a lower power V6... The two DI LT-engines are obvious choices...
Of course there's always that Elmiraj twin-turbo V8 lurking in the wings: "
4.5-liter twin turbocharged V8 delivering an estimated 500 hp. The engine takes the baseline technology from the Cadillac Twin Turbo V6 and expands it to the classic performance format of a V8 engine."