The 1964 Alfa Romeo Giulia TZ1, also known as the “Tubolare Zagato,” stands as one of the most iconic and rare racing cars of the 1960s. Designed by Ercole Spada and crafted by Zagato, the TZ1 distinguished itself through its lightweight tubular chassis, aerodynamic “coda tronca” tail, and outstanding performance on the track.

One of the model’s most unique features is its “double bubble” roof — a design innovation that provided additional headroom for taller drivers without compromising aerodynamic efficiency. This combination of form and function makes the car exceptionally desirable among collectors.

The TZ1 was powered by a 1.6-liter DOHC inline-four engine, producing 112 horsepower in road-going versions and up to 160 horsepower in racing spec. Weighing just 650 kilograms and boasting a near-perfect weight distribution, the car could reach speeds of over 215 km/h, offering impressive agility and pace for its time.

Its racing pedigree is legendary: the TZ1 competed and triumphed in iconic endurance events such as Le Mans, Nürburgring, Targa Florio, and Sebring. Its success was due not only to its mechanical excellence but also to its advanced aerodynamic profile, which reduced drag and enhanced stability at high speeds.

Today, the Alfa Romeo Giulia TZ1 is regarded as one of the most collectible and valuable classics, with auction prices often exceeding $700,000. Its rarity, rich motorsport heritage, and unmistakable design cement its status as a timeless masterpiece of automotive history.