GM/Chevy didn't do any of this. Must have been a dealer or a group of dealers doing this on their own. Chevy is very protective of our "monikers" and do not sanction any use of the Z-codes, SS or RS badges by private parties unless it comes from factory as an RPO or trim level. The only exception to this has been when GM has outsourced to suppliers like SLP, but the key here is the factory was still controlling this and had a say in the content. The Z-code cars denote a certain level of performance that is expected by enthusiasts and RS is the same thing for cosmetics. When dealers do this, they cheapen the brand and Chevy doesn't sanction or condone it.
