page_title: Chevrolet Impala
section_title: Fifth generation (1971–1976)
hierarchical_section_title: Chevrolet Impala / Fifth generation (1971–1976)
caption_attribution_description: a92
context_page_description: The Chevrolet Impala is a full-size car built by Chevrolet for model years 1958 to 1985, 1994 to 1996, and 2000 until 2020. The Impala was Chevrolet's popular flagship passenger car and was amongst the better selling American-made automobiles in the United States.
  For its debut in 1958, the Impala was distinguished from other models by its symmetrical triple taillights. The Chevrolet Caprice was introduced as a top-line Impala Sport Sedan for model year 1965, later becoming a separate series positioned above the Impala in 1966, which, in turn, remained above the Chevrolet Bel Air and the Chevrolet Biscayne. The Impala continued as Chevrolet's most popular full-size model through the mid-1980s. Between 1994 and 1996, the Impala was revised as a 5.7-liter V8–powered version of the Chevrolet Caprice Classic sedan.
  In 2000, the Impala was re-introduced again as a mainstream front-wheel drive car. As of February 2014, the 2014 Impala ranked #1 among Affordable Large Cars in U.S. News & World Report's rankings.
context_section_description: The Impala remained Chevrolet's top-selling model with the fifth generation. A high-performance big block V8 was still available in the form of the Turbo-Jet 454, which produced 365 hp (272 kW) in 1971, but power decreased as the years went along. The 1971 redesigned B-body would be the largest car ever offered by Chevrolet. The hardtop Sport Coupe continued to be offered; it was a smoothly sloped semi-fastback reminiscent of the 1961 "bubbletop" styling. A three-speed manual transmission remained standard at the beginning of the year, but in the spring of 1971 all V8-equipped full-size GM cars got Turbo Hydra-Matic as standard equipment. Powerglide remained optionally available for six-cylinder cars until the 1973 models. In keeping with their huge size, these new "B" body Chevrolets were close to Cadillac in luxury features, styling, and ride. Like all GM "B" bodied cars, Impala got a new power ventilation system that remained on while the ignition was on, and included both large vents in the instrument panel and louvers in the trunk. However, the system proved to be problematic and was disliked by many buyers.  Power assisted front disc brakes were standard for all models for 1971; variable-ratio power steering became standard in 1972 
  The 1972 model has a grille which extended below the bumper. Powertrains consisted of mostly V8 engines. The 250 inline six was still standard for Sport Coupe and 4-door sedan models; the 350 2bbl V8 became the standard engine from 1973–1976, with 350 cubic inches (5.7 L), 400 cubic inches (6.6 L), 402 cubic inches (6.6 L) (through 72) or 454 cubic inches (7.4 L) optional. The best-selling body style was the formal-roof Custom Coupe. Beginning in 1972, all engines were designed to run on unleaded gasoline. 1972 saw the last Impala convertible; it sold 6,456 units, placing fourth with just under 9 percent of the market, right behind the Corvette's 6,508 units sold, ahead of the Mustang's 6,401 units sold. The power ventilation system was improved, and exit vents were moved from the trunk lid to the door pillars.
  All 1973 Chevrolet vehicles featured a larger, shock-absorbing front bumper due to new federal mandates which required 5-mile-per-hour (8.0 km/h) impact protection. New taillights were mounted in the (still) conventional rear bumper. The convertible was moved upmarket to the Caprice Classic series. Tweaks to the suspension and frame gave better roadability, according to Chevrolet general manager John Z. DeLorean. Steering wheels and instrument panels were color-keyed to interior colors, as opposed to the matte black used in 1971–1972. The steering wheel rim got a soft-feel grip, and replaced the "Impala" badge with generic "Chevrolet." The inline six-cylinder engine was now offered on the Bel Air 4-door sedan only, and only with the 3-speed manual transmission. Interiors had repositioned front seats for more legroom. The Impala name returned for the Kingswood station wagon. Suspension and chassis design was modified for better roadability.  The bench front seat position was modified to fit tall drivers more comfortably; shorter drivers found it less so.
  One thousand 1973 Impalas were built with an "Air Cushion Restraint System" (ACRS) that used an Oldmobile instrument panel and unique steering wheel that contained both a driver and front passenger air bag. They were all four-door sedans painted in a special green-gold color. The system was not advertised in a big way and many of the cars were used for crash testing by both GM and the Federal government. Over the decades the system proved durable and successfully protected front passengers in front-end collisions. Unfortunately Chevy did not offer ACRS in 1974; however it was offered in Oldsmobile, Buick, and Cadillac models that year as an option and did save lives. One ACRS-equipped Impala was preserved and remains a witness to the ability of an American automaker to design life saving safety systems into cars without a government mandate. No other examples are known as of this time.
  In 1974, the rear bumper was redesigned with 
caption: 1976 Impala 4-door sedan
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