The Sigma Grand Prix of 1969 was a concept racing car that aimed to reinterpret the idea of F1 racing by introducing the latest safety ideas and protective technology that would reduce the inherent risk involved in racing.

The result of the work of an international team of experts, the prototype incorporated solutions that were futuristic at the time and have today become common use, such as safety tanks for fuel and the onboard fire protection system.

The Sigma was presented as a Ferrari concept car and featured a 3-litre V12 engine and weighed just 590kg. As well as safer fuel tanks, the sidepod design was intended to prevent the car flipping over after contact with another car and the cockpit was designed as a survival cell for the driver. It's interesting to note how fresh the design looks even today.