I'm not sure how GM decides what to name each RPO code, but since the Z28 was an option for the Camaro back in the 60s, I think whatever RPO GM decides to name the option for 2012 should be the name of the car. I don't know, but I think ZR1 is the RPO code for our fastest Vette. When they mention LS1, LS2, etc, we all know what that means. I say call it whatever the RPO code is for the option.
Current ride: 2010 Corvette Grand Sport