2010-2015 Gen 5: 175 mphIn 2003, Chevrolet pulled the plug on the Camaro, though that wouldn't last all that long. When the Gen 5 Camaro reappeared in 2010, some things had changed. The 5.7-liter engines were replaced with small-block 5.3-liter versions. In their place at the high end of the displacement range came a batch of 6.2 and 7.0-liter engines, with the former coming from Cadillac with a supercharger attached. The king of the hill among Camaros was the 2012 ZL1, which used the supercharged Cadillac engine to reach a top speed of 185 mph. It took top honors in the quarter mile as well at 12.1 seconds. The Z/28 used the normally aspirated 7.0-liter engine to keep up with a 12.3 second quarter mile, and a top speed of 175 mph. The ZL1 fed a 6-speed manual transmission, and managed these astounding numbers despite weighing over 4,000 lbs. For comparison, the versions of the 1990 IROC-Z weighed in at under 3,400 lbs.