It's quite possible that this isn't a domestic model. Alot of imports shared body stylings in the 70's with many domestic cars. Take the 1976 celica for example...
http://www.carhistory.no/celg1b1.jpg
http://www.carhistory.no/celg1b2.jpg
edit: im not saying that's a celica, just saying that there were more comparable similarities in body stylings around the 70's.
http://www.carhistory.no/celg1b1.jpg
http://www.carhistory.no/celg1b2.jpg
edit: im not saying that's a celica, just saying that there were more comparable similarities in body stylings around the 70's.