FIA World Sportscar Championship

The series operated under different names across its history:

1953–1961: World Sportscar Championship (sports prototypes)

1962–1965: International Championship for GT Manufacturers (GT cars); prototype title called Coupe des Sports (1962) or International Prototype Trophy (1963–1965)

1966–1967: International Manufacturers Championship (prototypes); International Sports Car Championship (GT cars)

1968–1971: International Championship for Makes (prototypes); International Grand Touring Trophy (GT cars)

1972–1975: World Championship for Makes (prototypes); International Grand Touring Trophy (GT cars)

1976–1977: World Sports Car Championship (prototypes); World Championship for Makes (Group 5 Special Production Cars)

1978–1981: World Championship for Makes (Group 5 Special Production Cars)

1982–1985: World Endurance Championship (sports prototypes and, 1983–1984, GT cars)

1986–1990: World Sports Prototype Championship (sports prototypes)

1991–1992: Sportscar World Championship (sports prototypes)

Titles were awarded to manufacturers from 1953 to 1984 and to teams from 1985 to 1992.

The most famous event was the 24 Hours of Le Mans, which was part of the championship in every season except 1956, 1975–79, and 1989–90. The 24 Hours of Daytona had near-continuous inclusion until 1982, when it was dropped as the series attempted to cut costs by keeping teams in Europe and running shorter races. Other events that counted towards the championship in certain years included the Mille Miglia (1953–57), 1000 km Nürburgring (from 1953), RAC Tourist Trophy (1953–64), 12 Hours of Sebring (from 1953), Carrera Panamericana (1953–54), Targa Florio (1955–73), 1000 km Monza (1963–2008), 1000 km Spa (from 1963), 12 Hours of Reims (1964–65), 1000 km Buenos Aires (1954–72), 1000 km Zeltweg (1966–76), 1000 km Fuji (1983–88), Norisring 200 Miles (1984–88), and Watkins Glen 6 Hours (1968–71, 1973–80).

In the early years, the calendar included legendary events such as the Mille Miglia, Carrera Panamericana and Targa Florio alongside Le Mans, the 12 Hours of Sebring, the Tourist Trophy, and the Nürburgring 1000 km. Manufacturers such as Ferrari, Maserati, Mercedes-Benz, Porsche, and Aston Martin fielded entries, often featuring professional drivers with Formula One experience, though the majority of fields were made up of gentleman drivers (privateers).

Cars were split into two main categories: purpose-built sports prototypes, the highest level in sports car racing, and production-based grand tourers (GT cars) based on road-going models. These categories were further divided by engine displacement. The Ferrari and Maserati works teams were fierce competitors throughout much of the decade; although Maserati cars won many races, the marque never managed to clinch the World title. Mercedes-Benz withdrew from the championship after 1955 following their crash at Le Mans. The small Aston Martin factory team struggled through 1957 and 1958 before winning the championship in 1959. The Jaguar works team was notably absent from the overall results, entering no events other than Le Mans despite the potential of the C- and D-Types.

In 1962, the calendar expanded to include smaller races and the FIA shifted focus to production-based GT cars, replacing the World Sportscar Championship title with the International Championship for GT Manufacturers. Cars were grouped into three engine capacity classes: under one litre, under two litres, and over two litres. Hillclimbs, sprint races, and smaller events expanded the championship to approximately 15 races per season. The famous prototype events like Le Mans continued to count towards a separate prototype championship. For 1963 a prototype category was added to the three engine capacity classes. For 1965 the classes became under 1300 cc (Class I), under 2000 cc (Class II), and over 2000 cc (Class III), with Class III's open upper limit designed to attract American manufacturers. The points system proved unwieldy and the series returned to approximately 6 to 10 races.

The period between 1966 and 1971 was considered possibly the most successful era of the World Championship, with S (5-litre sports cars) and P (3-litre prototype) classes. Cars such as the Ferrari 512S, Ferrari 330 P4, Ford GT40, Lola T70, Chaparral, Alfa Romeo 33, and Porsche 908 and 917 battled for supremacy on classic circuits including Sebring, Nürburgring, Spa-Francorchamps, Monza, Targa Florio, and Le Mans. Ford won four consecutive runnings of Le Mans during this era, now considered the Golden Age of sports car racing.

In 1972, the Group 6 Prototype and Group 5 Sports Car classes were replaced by a new Group 5 Sports Car class limited to 3.0-litre engines, and manufacturers gradually lost interest. New Group 5 Sports Cars together with Group 4 Grand Touring Cars contested the newly renamed World Championship for Makes from 1972 to 1975. From 1976 to 1981, the championship was open to Group 5 Special Production Cars and other production-based categories, a period during which the Porsche 935 dominated. Prototypes returned in 1976 as Group 6 cars in their own World Championship for Sports Cars, but this ran for only two seasons (1976–1977). A drivers championship was instituted in 1981.

In 1982, the FIA introduced Group C, a new category for closed sports-prototypes that limited fuel consumption — the theory being that by limiting fuel consumption, engine regulations could be more relaxed. Manufacturer support was immense. Porsche was the first constructor to join the series, entering the Porsche 956, followed by Jaguar Cars, Mercedes-Benz, Nissan, Toyota, Mazda, and Aston Martin. A C2 class (originally named C Junior) was created for privateer teams and small manufacturers with greater fuel-consumption limits; most C2 cars used either the BMW M1 engine or the Cosworth DFL, though individual solutions varied. Competitive C2 teams included Alba, Tiga, Spice, and Ecurie Ecosse. Regular crowds of 50,000 to 70,000 attended WSC events, with upwards of 350,000 at Le Mans. Despite the manufacturer diversity, Porsche — with its 956 and 962 Group C line — continued to dominate. The World Endurance Championship became the World Sports-Prototype Championship in 1986.

For 1991, the FIA introduced new rules at the behest of FIA vice president Bernie Ecclestone: 750 kg machines with 3500 cc normally aspirated engines designed to mandate Formula One units. The new classification, Group C Category 1, produced cars considered among the quickest sportscars ever built, with around 650 bhp compared to the approximately 750 bhp or more of existing Group C cars. However, take-up was slow and only a handful of Category 1 cars were ready for 1991; the FIA also allowed pre-1991 Group C cars to contest that transitional year as Group C Category 2 cars, though they were handicapped in weight, fuel allocation, and grid positions. The championship adopted the name FIA Sportscar World Championship for 1991, and the 3.5-litre rules took full effect in 1992.

The new generation of WSC racing engines quickly proved disastrous. Costs rose massively as works teams developed cars capable of qualifying around halfway up a Formula 1 grid, despite weighing approximately 200 kg more. Manufacturers including Mercedes and Peugeot abandoned the sportscar series to concentrate on or move solely to Formula 1. The more exotic engines were unaffordable for privateers. The series essentially collapsed and the 1993 season was cancelled before the first race.

In 1994, the World Sportscar title was adopted by the International Motor Sports Association in North America for use in the IMSA GT series, applied to the top prototype class until 1998. The BPR Global GT Series launched in 1994, reviving international GT racing; the FIA took over the series in 1997 as the FIA GT Championship. Sports prototypes in Europe were primarily covered by the International Sports Racing Series (1997), which evolved into the short-lived FIA Sportscar Championship (2001–2003), after which prototypes came under the Automobile Club de l'Ouest (ACO) and their sanctioned series — the American Le Mans Series in North America and the Le Mans Series in Europe. The FIA GT Championship was promoted to world championship status in 2010, the same year the ACO launched the Intercontinental Le Mans Cup.

Following the success of the ACO's Intercontinental Le Mans Cup, the FIA and ACO agreed to create the FIA World Endurance Championship for 2012. The series retained the 24 Hours of Le Mans and the ACO's two primary classes — Le Mans Prototypes and GT Endurance (GTE). Hypercar replaced LMP1 as the primary class in 2021, running LMH and LMDh cars matching those used in the IMSA Sportscar Championship's top GTP class. From 2017, championship titles were awarded to both constructors and drivers in the GTE category. LMGT3 replaced GTE in 2024.

This article is based solely on the supplied corpus. No external sources were consulted; claims that could not be substantiated against the corpus were omitted under the drop-the-claim rule.