Ferrari introduced the 275 GTB/4 at the 1966 Paris Salon in October. Besides a 24 mm increase in track width, the chassis remained unmodified. Outwardly the new car was the same other than a full-length bulge down the bonnet to clear the six downdraft Webers.
The 275 GTB/4 was a fantastic performer, capable of a 5.5-second sprint to 60mph and a scorching 14-second quarter-mile, figures that remain remarkable to this day. Few 1960’s automobiles can match the luxury and speed of this car for cruising. Pininfarina designed the coupé and spider bodywork, while Scaglietti created the limited-edition 275 GTS/4 NART Spyder. The 275 GTB coupé/GTS spider was ranked third on Motor Trend Classic’s list of the ten “Greatest Ferraris of All Time,” while the 275 GTB/4 was ranked seventh on Sports Car International’s 2004 list of the Top Sports Cars of the 1960s.
Between 1966 and 1968, the 275 GTB/4 and GTS/4 NART spyder variants were manufactured. They were powered by a four overhead cam 3.3 liter V-12 engine, a derivative of the 1964–1966 double overhead cam 275 engine. To differentiate the latter 275 models from the previous 275 models, they are sometimes referred to as “four-cam” automobiles.
The production line remained in operation until late 1968. By this time, 330 GTB/4s had been produced, with 27 being right-hand drive. There were less than 20 GTB/4s purchased with the aluminum body. In comparison, the GTS/4 was a commercial failure. This was most likely due to the astronomical price – it was more than 50% more expensive than a conventional GTB/4. After the first batch of 10, no more were made.
All were left-hand drives, with the exception of the first two, which used aluminum bodywork. Steve McQueen, a well-known actor, purchased chassis #10453. McQueen fell in love with the model after driving it in The Thomas Crown Affair (for which its color had been changed from Giallo Solare to maroon).
Ferrari eventually replaced the 275 GTB/4 and 275 GTS/4 with the new 365 GTB/4 and 365 GTS/4.