Not a formal Name. "Plymouth Valiant Signet " is the name. The "Signet" name brought the 225 cubic inch motor and trim upgrade. That said..... I consider all 1960's Mopar's as Classics. Big difference if this was a 2-door and V8 motor.....but still a classic Mopar. I consider it an entry level Mopar....although some Mopar guys like the family look of 4-doors.