I have a 2011 C6 Grand Sport « 4LT » option car. The reason I say « 4LT » is because my car’s VIN number points to a « 3LT » with RPO code PCQ. That RPO was used to bypass the « 4LT » restrictions from the factory (IMO).
Having said that, where can I see the number of 4LT and 3LT with RPO PCQ...