Italy's Carrozzeria Zagato was established in 1919 at Monza, located just north outside of Milan. They were very good at building lightweight car bodies utilizing technology from aircraft manufacturing. Alfa Romeo, who had been producing sports car since before World War II, took note of this and were very successful in the racing world using these Zagato build bodies. This collaboration continued even after the war, and together they have created many attractive models that have become a notable part of automotive history.
One of the foresome examples of this was the TZ which debut in 1962. This was a model intended for racing application, and as the name Tubolare Zagato implies, it mounted an aerodynamic aluminum body on a steel tubular space frame. To this extremely lightweight chassis only weighing 660 kg, was mounted a DOHC 1.6-liter engine from the Julia series, producing 110 HP/6,500 rpm.
The TZ2 appearing in 1965 was a model that took the TZ one step further and made it even more competitive. It is said that the total production was probably 10 or 12 cars, and there have also been examples of TZ's being returned to the factory to be refitted as the TZ2. Unlike the TZ, which was released as a road going car, the TZ2 was a complete racing spec car from the start.
The major difference of the TZ2 was that the body was built of FRP to make it 40 kg lighter, with its nose and roof lowered for better aerodynamics. Its engine was also upgraded using the same twin ignition head from the GTA, to produce 162 HP/7,000 rpm, and its top speed has been increased greatly from 134 to 152 mph.