countries with a poor road system that had previously been supplied by American manufacturers before their cars had become bloated. They wanted a car with good stability, good visibility, and room for six people and their luggage, a speed of 120 km/h and a fuel consumption of 10 km/L. Unfortunately they also wanted the car with a modest size engine that wasn't too expensive to run in Italy. Despite Giacosa's best efforts they got a car that was neither one thing or another. Only one hundred and twenty thousand examples were produced in eight years. His next light car design was the 1100-103; this model perpetuated the name Millecento previously given to the 508C. This Millecento was a compact unitary construction saloon fitted with wishbones and coil springs at the front and a live axle and half-elliptic springs at the rear. Its excellent handling and good performance was in the tradition of its predecessor. Of conventional design for its period, with a water-cooled OHV inline four-cylinder engine of , at first producing rising to but much more when tuned. The gearchange for the four-speed gearbox was on the steering column, and the handbrake worked on the transmission. Through a series of models culminating with the 1100R (the 1100D had a engine), the Millecento remained in production until 1970 and one and three quarter million examples had been produced. Next Giacosa and his team designed a replacement for the Fiat Topolino. The last version of the 500C had been discontinued the previous year 1954. The 600 was a totally new car, and for Fiat a new layout with the engine at the rear as well as unitary construction. When the 600 were introduced in 1955, rear-engined cars had been produced for well over a decade and their advantages and disadvantages by then well known. Giacosa used the advantages to produce a four-seat car, although with limited luggage space, that had a reasonable performance from an engine of only 633 cc, due to its low weight of 585 kg and also compact dimensions. Capable of almost 100 km/h (62 mph) and returning a fuel consumption of 16 to 20 km/L and the ability to cruise at 80 km/h (50 mph). He overcame the stability problems associated with other rear-engined designs by identifying that the problem was not the weight distribution of the cars, but the simple swing axle rear suspension used in