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Dedicated to the promotion and preservation of the Chevrolet dealer built Supercars and COPO cars.
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The above quote is the basis on which Tom and Rob started the website. I think the definition as it stands works -- you had to know the secret handshake to get a COPO and the dealer built cars pushed the performance envelope beyond what you could get as an RPO. At some level it's about performance AND rarity.
However, since the site started it has morphed a bit, even recently adding a non-Chevrolet thread to recognize the varied interests of board members and the performance vehicles of other marques. But if you get down to it, it's Tom's site and he can define the universe of "Supercars" how he likes.
