equipment was similar to Malibu Sport Coupes and convertibles including an all-vinyl bench seat. Bucket seats and console with floor shift were now optional on the SS and for 1966 with the SS now denoting a car with a big-block engine, the bucket seats became a new option on the regular Malibu Sport Coupe and convertible, upon which any six-cylinder or small-block V8 could be ordered. Also new for 1966 was the Chevelle Malibu four-door Sport Sedan hardtop. Styling revisions on all 1966 Chevelles including more rounded styling similar to the full-sized Chevrolets with sail panels and tunneled rear windows featured on two-door hardtop coupes. For 1967, the same assortment of bodystyles were continued with styling changes similar to all other Chevelles including a new grille and revised tail section with taillights that wrapped around to the side. New this year was a Chevelle Malibu Concours station wagon with simulated woodgrain exterior side panel trim. Front disc brakes were a new option along with a stereo 8-track tape player. The same assortment of drivetrains carried over from 1966 with the top V8 dropped from . Second generation (Chevelle Malibu, 1968) Malibus and all other Chevelles were completely restyled for 1968 with semi-fastback rooflines on two-door hardtops and wheelbases split to } on two-door models and 116 for four-door sedans and station wagons. Engine offerings included a new V8 rated at that replaced the V8 that had served as the base V8 since the Chevelle's introduction in 1964. Inside was a new instrument panel featuring round gauges in square pods similar to what would appear in Camaros the following year. New for 1968 was the Concours luxury option for Malibu sedans and coupes that included upgraded cloth or vinyl bench seats, carpeted lower door panels, woodgrain trim on dash and door panels, a center console and floor shifter (only with the hardtop and convertible, which was shared with the SS396) and Concours nameplates. There was again a top-line Concours Estate wagon with simulated woodgrain trim that had the same interior and exterior appointments as the Malibu sedans. New grilles and rear decks with revised taillights highlighted the 1969 Malibus and other Chevelles. Instrument panels were revised and front seat headrests were now standard equipment due to federal safety mandate. The ignition switch moved from the instrument panel to the steering column and also doubled as a steering wheel lock. The 307