The Alfa Romeo Tipo 33 Sport Prototype was designed in the mid 1960s to race in the World Sports Car Championship. Eventually it succeeded and won the Manufacturers' Championship in 1975, and again in 1977.
Designed by Carlo Chiti, a famous Italian engineer, the several variants of the car were raced by the Alfa factory and by many privateers as well.
After the initial victories in the 2-litres Prototype category, the 'T33/3' version made its debut in 1969 and gained its best results in the 1971 World Championship: the Autodelta 'open' Prototypes won the overall ranking at Brands Hatch, Watkins Glen and the Targa Florio, being even faster than the 5-litres 'Sport' cars.
The 'T33/3' cars featured a monocoque chassis, paneled in aluminium and magnesium, a V8 2998 cc engine, and a 6 or 5 speed gearbox. Top speed reached 330 km/h, at Le Mans with long tail.
In 1972 the World Endurance Championship started being reserved to Group 6 cars. Consequently, the Alfa 33/3 was phased out in favour of the more modern 33/12.
Slot.it's CA11i reproduces car n.8 which raced the 1000km of Buenos Aires driven by Nino Vaccarella and Carlos Pairetti.