Pininfarina Sigma Grand Prix

Vehicle Overview

The Pininfarina Sigma Grand Prix, unveiled on 13 March 1969 in Geneva, was an innovative prototype designed not for competition in Formula One races, but as a groundbreaking study in safety standards for motorsport. The impetus for the Sigma’s creation was the alarming number of fatalities among Formula One drivers, highlighting the dire need for enhanced safety measures. This ambitious project was a collaboration between Pininfarina and Revue Automobile, with significant support from Enzo Ferrari, Fiat, and Mercedes. The name “Sigma” had historical significance for Pininfarina, harking back to an earlier experimental safety vehicle, the 1963 Pininfarina PF Sigma. The Pininfarina Sigma Grand Prix was designed by Paolo Martin, based on the Ferrari 312, and weighed in at a relatively light 590 kilograms (1,300 pounds). Under the hood, it was powered by a formidable 3.0-liter V12 engine, delivering 436 horsepower (325 kW), ensuring that it had the performance capabilities to match its innovative safety features. The Sigma was conceived as a “future car,” primarily showcasing advanced safety standards that were revolutionary for its time. Among its numerous innovations was a driver survival cell designed to protect the driver in the event of a crash. This feature has since become a standard in modern racing cars. Additionally, the Sigma was equipped with multi-layer fuel tanks and plastic fuel-tanks, designed to minimize the risk of fire upon impact. A built-in fire extinguisher system further enhanced the car’s safety credentials. Another significant safety feature was the integration of a sophisticated safety-belt system, which was not yet standard in racing cars. The car also featured sidepods that protruded behind the rear wheels, a design intended to prevent the dangerous interlocking of wheels during a collision. These sidepods were an early precursor to the aerodynamic designs seen in modern Formula One cars. The original Sigma remains in the possession of Pininfarina, serving as a testament to the company’s forward-thinking approach to automotive safety and design. Although it never competed in a race, the Sigma’s legacy lives on, influencing the safety standards and technological advancements that have become integral to modern motorsport.