Very rare 68 GTS

I was talking to my wife's cousin today and he was telling me about his 68 GTS. It came from the factory with a 273, flat hood, 270 finish panel, bench seats and where my Dart says 270 on the dash his had 273. He said that it was a real GTS because it had GTS on the side of the car. He worked at a Chrysler dealer when he was young so I guess that must be true.