Car

Porsche 911

section:car

The Porsche 911 is a rear-engine sports car introduced in September 1964 by Porsche of Stuttgart, Germany. Alongside its long road-car history, the 911 has been raced extensively by private and factory teams across a wide variety of classes and is among the most successful competition cars of the twentieth century.

The 911 engine was developed early in its production life for motorsport purposes, with the Type 901/20 and fuel-injected Type 901/21 units installed in the mid-engine Porsche 904 and Porsche 906 at power outputs of 210 PS and 220 PS respectively. The 911 Targa body style introduced in 1967 took its name from the Targa Florio road race in Sicily, in which Porsche had scored multiple victories; the last win in that subsequently discontinued event was achieved with a 911 Carrera RS against prototypes entered by Ferrari and Alfa Romeo. The 911 ST, a lightweight racing variant produced from 1970 to 1971 in small numbers, achieved success at the Daytona 6 Hours, the Sebring 12 Hours, the 1000 km Nürburgring, and the Targa Florio.

The 1973 Carrera 2.7 RS was developed to meet motorsport homologation requirements for FIA Group 4. It carried a 2,687 cc engine producing 210 PS with Bosch mechanical fuel injection, revised suspension, a "ducktail" rear spoiler, and wider rear wheels. A total of 1,580 units were produced. From this foundation, 49 Carrera RSR cars were built with 2,808 cc engines rated at 300 PS. The Carrera RSR scored wins in several major sports car races in the mid-1970s, including world championship events such as the Targa Florio and the 24 Hours of Daytona. A prototype Carrera RSR Turbo with a 2.1-litre engine finished second at the 1974 24 Hours of Le Mans and won several major races; its engine formed the basis for many subsequent Porsche sports car racing programmes. For the 1974 IROC Championship, 1973 Carrera RSR models were fitted with a 3.0-litre engine and a flat "whale tail" spoiler along with wide body panels.

The Carrera RS 3.0, developed in 1974, used mechanical fuel injection rated at 230 PS. Its braking system was derived from the Porsche 917. Weight was reduced to around 900 kg through thinner metal panels and a minimalist interior.

The 930 Turbo, introduced for the 1975 model year, was Porsche's first production turbocharged 911. Production of the first 400 units qualified the car for FIA Group 4 competition. The racing version derived from it, the Porsche 934, participated at the 24 Hours of Le Mans in 1976 among other events. From the 934, Porsche developed the FIA Group 5 Porsche 935, fitted with a slope nose and producing over 500 PS. Campaigned by the factory in 1976, it won the world championship title. Private teams continued with the 935, winning Le Mans in 1979, and competing successfully well into the 1980s.

Porsche won the World Championship for Makes in 1976, 1977, 1978, and 1979 with 911-derived models.

In the mid-1970s, naturally aspirated 911 Carrera RSR models won world championship races including the Targa Florio and the 24 Hours of Daytona. The 911-derived 935 turbo won the 24 Hours of Le Mans in 1979.

The Porsche 911 GT1 was developed in 1996 for the GT1 class in the 24 Hours of Le Mans. To achieve type homologation, 25 road-going models were constructed. The race car's engine was rated at 608 PS and the car could accelerate from 0 to 97 km/h in 3.3 seconds with a top speed of 330 km/h. The race car was described as a match for the then-dominant McLaren F1 GTRs. A redeveloped version of the GT1 race car won outright at the 1998 24 Hours of Le Mans.

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.