the 65, 66, and 67 Fastbacks, also the Pontiac versions of these cars too!
then there are some late 60`s Mustangs, and Chrysler products
Type Fastback into your search engine...Here I did it for you!
http://images.search.yahoo.com/search/images;_ylt=A0oGkyFgm5ZIQH0B0sBXNyoA?ei=UTF-8&p=fastback&fr2=tab-web&fr=ytff1-msgr