2.4 Turbo Diesel, which in most markets gradually replaced the previous 2.0-litre which was instead installed in the marginally smaller Giulietta. There was also a renewed two-liter Quadrifoglio Oro, equipped with electronic fuel injection. Thanks to the Bosch Motronic integrated electronic fuel injection and ignition the QO had the same output of the carburetted 2.0, while developing more torque and being more fuel efficient. In April 1984 the successor of the Alfetta debuted, the larger Alfa Romeo 90. At the end of the year the Alfetta Berlina went out of production, after nearly 450,000 had been made over a 12-year production period. Official use The Alfa Romeo Alfetta was used as police car by the Carabinieri as well as by Polizia di Stato. It became well known throughout the world since it was Italian former Prime Minister Aldo Moro's official escort car when he was kidnapped by the Red Brigades. Production and marketing South African market South African models were first assembled at Automaker's Rosslyn plant, located outside Pretoria. These early, 1973 models, were manufactured alongside Datsuns. From 1974 South African Alfetta's were manufactured at Alfa Romeo's own Brits plant. The 1600 model, with single headlamps as in Europe, arrived to complement the 1800 and 2000 in mid-1976. Beginning in October 1982, the Quadrifoglio Oro model was marketed as the Alfa Romeo 159i, with the fuel injected two liter engine. North American market The four-door Alfetta was sold in the United States from 1975 through 1977 under the name "Alfetta Sedan". From 1978 to 1979 a mildly restyled version, known in Italy as "Alfetta 2.0 LI America", was sold under the name "Sport Sedan". GT Alfetta GT and GTV The Alfetta saloon was the base for the Alfetta GT, a 2-door, 4-seater fastback coupé designed by Giorgetto Giugiaro at Italdesign. Introduced in 1974, similarly to the saloon it was initially available only with the 1.8-litre (1,779 cc) version of the Alfa DOHC four. These engines featured a chain driven 8-valve twin overhead cam cylinder head of cross-flow design. For 1976, with the final phasing out of the earlier 105 Series (GT 1300 Junior and GT 1600 Junior and 2000 GTV), the Alfetta GT became a range; the 1.8 was discontinued in favour of the 1.6-litre (1,570 cc) Alfetta GT 1.6 and 2.0-litre (1,962 cc) Alfetta GTV 2.0. At the same time some updates were introduced, such as a new front