1970 was the final year of the fourth-generation superstar seller for Chevy. The six-cylinder engine was now only available on four-door sedans as a 250-horsepower Turbo-Fire V8 became standard for bigger-engined trims. Dropped from the Impala this year were the floor-mounted four-speed manual and the Strato bucket seats. At this point, buyer interest in larger sport coupes was dwindling (cough, Camaro, cough), so the Super Sport model was cut after the 1969 model year.