Rumor has it that Chevy’s Hollywood, California design center are currently putting the finishing touches on a pair of concepts that will be revealed at the 2012 North American International Auto Show in Detroit, Michigan next month. We could speculate to the moon and back as to what we might see. A Cruze coupe concept, a high performance Sonic, a Ford SVT Raptor-fighting Silverado? An El Camino? We’ll have to do some digging.