I think You are confused. My 1969 sport coupe is a fastback. 1970 also sold the sport coupe. The custom coupe was made for people who wanted a cheap Caprice since 1965. I did not order a custom coupe for My 1969 Impala SS427 L72 because it did not look like the coupes. The 1969 sport coupe has a raised roof for more headroom in the back. People complained about the 1965 to 1968 fast back roof line NICK L72