Stylistically, the Avenger was undoubtedly very much in tune with its time; the American-influenced "Coke Bottle" waistline and semi-fastback rear-end being a contemporary styling cue, indeed the Avenger would be the first British car to be manufactured with a one piece plastic front grille.
The Chopper was introduced at American trade shows in January 1969, and first shipments of Choppers were Fastback 100's delivered to the Eaton's department store chain in Canada in April 1969.