67 dart,, only made one year,,

Dean3001 said
Theres a word that defines a vehicle that is basically an only child so to speak & I cant remember the term. Like clone, if I was describing a car that was a dart 270 dart & I tried to make it into a GT ... JUST CANT REMEMBER THE TERM.

Then that would describe pretty much all of them since they all were only made one year. Like my 64 Valiant. It's different than a 63 and a 65.