In response to The Dukes of Hazzard shows, yes, they did destroy a great number of them, but there were still a bunch left.
Wayne Wooten, the guy who runs the Dodge Charger Registry, called Warner Brothers to see if there were any General Lee's left, and if they were for sale. Long story short, they wound up flying him out to the California set where most of the show was filmed (and yes, Cooter's Garage is still standing, just as it was when they stopped filming in the 80s), whereupon they took him to a grassy lot behind one of the buildings, and lo and behold it was filled with nothing but used (and abused) General Lee Chargers.
Wayne told me his jaw just about hit the ground when he saw so many ORIGINAL General Lee's all in one place. They wound up striking a deal, and selling the cars exclusively to members of the Registry, the buyers of which were asked to pay only what they could afford. There were some raging hot deals happening, wish I'd had money at the time
Also, Warner Brothers meticulously documented all of the cars they didn't trash. Almost all of them that survived were fitted with a special plate stating they were used on the show (a "Certificate of Authenticity" if you will). If anyone ever tries to sell you a "genuine" General Lee, look for it. If it isn't there, it's probably a fake
