This page advertised four Chevrolet offerings: the Impala SS Coupe, the Chevelle Malibu SS Coupe, the Corvair Corsa Sport Coupe, and the Chevy II Nova SS Coupe. A few notable features on each: the Corsa came with an optional 180 hp turbocharged engine, the Chevelle SS went down as Chevrolet's first foray into muscle cars, while the Chevy II completed its transition from compact car to muscle car. Despite the Chevy II's makeover, the slick '65 Corvair completely overshadowed its popularity. It is now commonly remembered as the the one GM car that experienced a decline in sales that year.
See the full ad in November 1964