They’re all British car companies, but more importanly, they all have factory-sponsored racing teams. For decades, these companies have battled it out on the racetrack in everything from Formula 1 racing to grand touring to group racing.
What these companies would typically do is take one of their production cars and modify it to compete in a specific class of racing. There is one catch, though. Auto manufacturers are required to build a minimum number of vehicles and sell them to the public in order to classify as a production car. This practice, known as homologation, means that a small number of factory-built race cars will make it out into the real world – completely road legal. This is exactly what happened in the 1960s with the Lotus Cortina.