The sixth-generation Corvette started in 2005 as a strong, honest 400-horsepower sports car and ended its run in 2013 as the platform for a 638-horsepower supercharged ZR1 capable of over 200 mph. In between came the track-focused Z06, the value-minded Grand Sport, and a mid-cycle engine upgrade that changed the car’s entire personality. This rundown covers what changed year to year, which variant is which, and what to check before buying one today. Read on to find out where your ideal C6 fits in.