Figures: Fourth generation (1978–1981) GM downsized its intermediate line, reducing wheelbase by and curb weight by nearly half a ton. The Century was initially offered as an "aeroback" fastback two-door coupe and a fastback four-door sedan along with a station wagon model (sharing bodies with the Oldsmobile Cutlass Salon). The car was over a foot shorter, several inches narrower, and several hundred pounds lighter than its predecessor. Big-block engines were discontinued and the new base powerplant was Buick's new V6 introduced specifically for the Century and Regal. The V6 and the Chevrolet 305 V8 were options. The Pontiac and replaced the Chevrolet engine for 1979. One of the more rare models of this time was the 1979 to 1980 Century Turbo Coupe, powered by a turbocharged version of the 3.8 L V6, which offered V8-like performance with more reasonable fuel consumption and reduced emissions. The Turbo Coupe was not nearly as popular as the similar Regal Turbo Sport Coupe of the time, and total production is estimated to be less than 2,500. The two fastback models (along with the Oldsmobile Cutlass Salon) proved unpopular. For 1980, the fastback four-door sedan was dropped in favor of a conventional notchback four-door sedan. After 1980, the Century fastback coupe was discontinued. With the introduction of the new front-wheel drive Century in 1982, the existing notchback sedan and wagon models were transferred to the Regal line. Production Figures: Fifth generation (1982–1996) In January 1982, GM debuted the downsized fifth generation Century, using the front-wheel drive A platform, in coupe and sedan forms. The fifth generation Century shared the front-wheel drive A platform with the Cutlass Ciera, Pontiac 6000 and Chevrolet Celebrity, and together the A-bodies became enormously popular — as well as synonymous with GM's most transparent examples of badge engineering, highlighted almost indistinguishably on the August 22, 1983 cover of Forbes magazine as examples of genericized uniformity, embarrassing the company and ultimately prompting GM to recommit to design leadership. In October 1983, a station wagon was added to the lineup to replace the discontinued Regal wagon. The 1984 model year also had an Olympic version of the Buick Century, commemorating the 1984 games in Los Angeles, California. In 1985, all 1986 versions were "freshened" with a new, more angular front fascia. Wheelbase was , with overall length. Both four-cylinder gasoline units and diesel V6 engines were offered in this generation, although neither became