(Motorsport-Total.com/Motor1) – The Shelby Cobra 260 prototype with chassis number CSX2000 marks the turning point in American sports car history. Carroll Shelby realized his vision of a lightweight British roadster powered by the brutal force of a Ford V8 engine. This one-off not only served as a technical test object but was also a strategic tool to convince investors and the trade press of its production readiness.
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Its chassis number CSX2000 identifies exactly the specimen with which the history of the Cobra began. At the same time, the car quickly developed into a crucial instrument to convince the press, customers, and especially Ford of the project’s potential.
The car was initially built in England, but its final form was achieved in the USA. It was precisely this collaboration between AC Cars, Carroll Shelby, and Ford that turned a rather simple idea into one of the most legendary automobiles in history.
From the AC Ace to the first Cobra
The story of the CSX2000 begins at AC Cars in Thames Ditton, England. The company modified a chassis of the AC Ace according to Carroll Shelby’s direct specifications. He envisioned a car that combined the lightweight British frame with a compact American V8 engine.
The project was named “Carroll Shelby Experimental 2000,” from which the code CSX2000 was derived. Compared to the original AC Ace, the car received numerous structural and mechanical changes. The frame was fitted with main tubes with thicker wall thicknesses, the suspension was reinforced, and additionally, a Salisbury limited-slip differential was used.
Completed at the end of February 1962, the CSX2000 arrived in the USA without engine and transmission. The chassis was taken to Los Angeles airport, where Carroll Shelby and Dean Moon personally received it.
Subsequently, the car went to Dean Moon’s workshop in Santa Fe Springs, California. There the crucial conversion took place. Shelby and Moon installed one of the first 4.2-liter V8s from Ford and combined it with a manual four-speed transmission. The work progressed quickly. After just a few hours, the Cobra was ready for initial tests.
The result was an extremely lightweight sports car with an aluminum body and a V8 producing around 191 kW (260 hp). The favorable power-to-weight ratio immediately proved to be one of the project’s great strengths.
The Cobra that kept changing colors
Shelby then used the same specimen to present the new sports car to the press and potential customers. He had the paintwork changed several times to create the impression that production was already in full swing. The Cobra initially appeared in polished metal, later in red and blue, and finally received the distinctive bright yellow for the 1962 New York Auto Show.
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Photo series: Milestone CSX2000: The first Shelby Cobra prototype in detail
Before its public debut, the Cobra was actually painted in a pearlescent yellow. Shelby had been advised that this color would look particularly good under the fluorescent lighting of the show.
The strategy worked. The CSX2000 immediately attracted attention and was at the center of the first reports about the Cobra, which were extremely positive. Early road tests by the press contributed decisively to the reputation of the new sports car. Car Life recorded a sprint from 0 to 100 km/h in just 4.2 seconds, an exceptional value for the time. The top speed was 246 km/h.
The connection to Ford
However, the significance of the CSX2000 went far beyond its performance figures. In this early phase, practically the entire Cobra project revolved around this one specimen.
Shelby used the Cobra to prove to Ford that his idea worked. The American V8 in the British sports car chassis delivered exactly the performance Shelby wanted to achieve. The exchange with Ford management ultimately helped convince the American manufacturer to financially support production.
From this project developed a collaboration that would produce around 1,000 Cobras over the next five years. From Shelby’s original idea emerged one of the most important programs in the history of American sports cars.
Today, the CSX2000 stands for much more than just a particularly rare Shelby Cobra. It marks the starting point of the entire series and was the first car to show how effectively a lightweight British chassis could be combined with a Ford V8. All later Cobra models trace back in some way to this project.
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