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Stirling Moss's Lotus 18 at the Nürburgring in 1961
from late Spring to early Autumn in Europe, although not all of these were considered significant. Most competitive cars came from Italy, particularly Alfa Romeo. After the start of the world championship, these non-championship races continued. In the 1950s and 1960s, there were many Formula One races which did not count for the World Championship (e.g., in 1950, a total of twenty-two Formula One races were held, of which only six counted towards the World Championship). In 1952 and 1953, when the world championship was run for Formula Two cars, a full season of non-championship Formula One racing took place. Some races, particularly in the UK, including the Race of Champions, Oulton Park International Gold Cup and International Trophy, were attended by the majority of the world championship contenders. These became less common through the 1970s and 1983 saw the last non-championship Formula One race: The 1983 Race of Champions at Brands Hatch, won by reigning World Champion Keke Rosberg in a Williams-Cosworth in a close fight with American Danny Sullivan.
South Africa's flourishing domestic Formula One championship ran from 1960 through to 1975. The frontrunning cars in the series were recently retired from the world championship although there was also a healthy selection of locally built or modified machines. Frontrunning drivers from the series usually contested their local World Championship Grand Prix, as well as occasional European events, although they had little success at that level.
The DFV helped make the UK domestic Formula One series possible between 1978 and 1980. As in South Africa a decade before, second hand cars from manufacturers like Lotus and Fittipaldi Automotive were the order of the day, although some, such as the March 781, were built specifically for the series. In 1980, the series saw South African Desiré Wilson become the only woman to win a Formula One race when she triumphed at Brands Hatch in a Wolf WR3.
Racing and strategy
A Formula One Grand Prix event spans a weekend. Currently, it begins with two free practice sessions on Friday (except in Monaco, where Friday practices