The 2013 Camaro ZL1 is the most technologically advanced Camaro ever made. In 1969, the original ZL1 was a custom-built COPO ordered car with an all-aluminum 427 chi engine. It was a bold move for its time. Stepping ahead more than 40 years, the 2013 ZL1 is even more robust, with a 6.2 liter supercharged V-8 pumping out 580 horsepower.