bombed during the Second World War and struggled to return to profitability after the war. The luxury vehicles were out. Smaller, mass-produced vehicles began to be produced beginning with the 1954 model year, with the introduction of the Giulietta series of berline (saloons/sedans), coupes and open two-seaters. All three varieties shared what would become the Alfa Romeo overhead Twin Cam four-cylinder engine, initially displacing 1300 cc. This engine would eventually be enlarged to 2000 cc and would remain in production until 1995. Post war Once motorsports resumed after the Second World War, Alfa Romeo proved to be the car to beat in Grand Prix events. The introduction of the new formula (Formula One) for single seat racing cars provided an ideal setting for Alfa Romeo's Tipo 158 Alfetta, adapted from a pre-war voiturette, and Giuseppe Farina won the first Formula One World Championship in 1950 in the 158. Juan Manuel Fangio secured Alfa's second consecutive championship in 1951. In 1952, Alfa Romeo experimented with its first front-wheel-drive compact car, "Project 13–61". It had the same transverse-mounted, forward-motor layout as the modern front-wheel-drive automobile. Alfa Romeo made a second attempt in the late 1950s based on Project 13–61. It was to be called Tipo 103 and resembled the smaller version of its popular Alfa Romeo Giulia. However, due to the financial difficulties in post-war Italy, the Tipo 103 never saw production. Had Alfa Romeo produced it, it would have preceded the Mini as the first "modern" front-wheel-drive compact car. In the mid-1950s, Alfa Romeo entered into an agreement with Brazil's Matarazzo Group to create a company called Fabral (Fábrica Brasileira de Automóveis Alfa, "the Brazilian Alfa automobile factory") to build the Alfa Romeo 2000 there. After having received government approval, Matarazzo pulled out under pressure from Brazil's President Juscelino Kubitschek with the state-owned FNM company instead commenced building the car as the "FNM 2000" there in 1960. During the 1960s, Alfa Romeo concentrated on motorsports using production-based cars, including the GTA (standing for Gran Turismo Allegerita), an aluminium-bodied version of the Bertone-designed coupe with a powerful twin-plug engine. Among other victories, the GTA won the inaugural Sports Car Club of America's Trans-Am championship in 1966. In the 1970s, Alfa Romeo concentrated on prototype sports car racing with the Tipo 33, with early victories in 1971. Eventually the Tipo 33TT12 gained the World Championship for Makes for Alfa Romeo in 1975 and