page_title: Ferrari 250 Testa Rossa
section_title: 1961: TRI61
hierarchical_section_title: Ferrari 250 Testa Rossa / Design and development / Variants and further development / 1961: TRI61
caption_attribution_description: 1961 Ferrari 250 TR 61 Spider Fantuzzi
context_page_description: The Ferrari 250 Testa Rossa, or 250 TR, is a racing sports car built by Ferrari from 1957 to 1961. It was introduced at the end of the 1957 racing season in response to rule changes that enforced a maximum engine displacement of 3 liters for the 24 Hours of Le Mans and World Sports Car Championship races. The 250 TR was closely related to earlier Ferrari sports cars, sharing many key components with other 250 models and the 500 TR.
  The 250 TR achieved many racing successes, with variations winning 10 World Sports Car Championship races including the 24 Hours of Le Mans in 1958, 1960, and 1961, the 12 Hours of Sebring in 1958, 1959 and 1961, the Targa Florio in 1958, the 1000 Km Buenos Aires in 1958 and 1960 and the Pescara 4 Hours in 1961. These results led to World Sports Car Championship constructor's titles for Ferrari in 1958, 1960 and 1961.
context_section_description: All 1961 250 Testa Rossas were designated 250 TRI61 as independent rear suspension was now standard.
  Due to high drag and visibility problems with the TR60 body style, Ferrari engineers including Giotto Bizzarini and Carlo Chiti were tasked with completely re-designing the 250 TR bodywork for the 1961 racing season. As a result, the new Fantuzzi-built TRI61 body incorporated a number of dramatic changes, informed by new aerodynamic theories and wind-tunnel testing. The windshield now had a more gradual slope and wrapped around both sides of the cockpit to meet the rear bodywork. Instead of the rounded tail with fairing for the driver's head, the TRI61 had a very high rear body that met the trailing edge of the side windows and tapered to a truncated, slightly concave Kamm tail. This bodystyle was called an "open coupe" and was very similar to bodies used on mid-engined Ferrari sports racers such as the 1961 246 SP. 
  The front air inlet was now split into two openings, introducing the distinctive "sharknose" or "nostril" style that was also used on other Ferrari sports racing cars such as the 246 SP and the 156 Formula 1 car. This front end styling had first appeared on a trio of Maserati 250Fs that Fantuzzi re-bodied in 1958 for racer Ross Jensen and team owner Temple Buell (son of the architect with the same name). Fantuzzi's suggestion that the twin intakes would improve air penetration was confirmed by Chiti's wind tunnel testing, leading to the adoption of this style throughout Ferrari's 1961 racing cars.
  During testing of the 250 TRI61, a full-width angled "deflector" panel was installed along the top edge of the rear bodywork. This was initially installed to prevent exhaust fumes from entering the cockpit under deceleration. After testing the prototype with the deflector, driver Richie Ginther commented that high-speed stability seemed to improve with only a slight reduction in top speed, leading to the inclusion of this feature on all 1961 bodies. The Ferrari engineers had in effect created a rear spoiler, well before engineers understood the aerodynamic theory behind them and integrated them into many car designs.
caption: 1961 250 TRI61 Spider Fantuzzi
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