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By 1969, Porsche develops the 917 Spyder with a view to competing in the extremely popular North American racing series, the Canadian American Challenge Cup (Can-Am). Three units featuring 4.5-litre twelve-cylinder naturally aspirated engines are constructed in Zuffenhausen, and Jo Siffert takes one to the US to compete in the Can-Am races, ultimately placing fourth overall. The car becomes known as the 917 PA Spyder, with “PA” standing for “Porsche + Audi” as they are the two sales organisations in the US at the time.
The Porsche 914-6 GT was a race car built by Porsche, based on the 914 model with a 6-cylinder engine and GT package. The 914-6 GT was a race configured version of the 914-6. The factory offered the GT option, which was distinguishable by its box-like steel fender flares. It quickly became known as the 914-6 GT and was raced employing different engine configurations. This included the 'T' specification, which was a basic 911 engine. Another popular configuration was to use a converted Carrera 6 engine.
Röhrl and Geistdörfer very nearly won that San Remo Rally, after a comeback that would have been one for the ages. Röhrl and Geistdörfer were up against a field of faster, more powerful four-wheel-drive cars in their rear-wheel-drive Porsche 911 SC, and somehow managed to pull within an eyelash of victory. Unfortunately, a broken driveshaft forced the pair to retire, leaving Michele Mouton's Audi Quattro to run away with the race.
PORSCHE 904 CARRERA GTS
The Porsche 904 debuted late in 1963, for the 1964 racing season. Porsche designed the 1965 Porsche 904 Carrera GTS variant to compete in the FIA-GT class at various international racing events and a street-legal version debuted in 1964 in order to comply with FIA’s Group 3 homologation regulations. When the 904 Carrera GTS debuted, it represented Porsche’s first foray into fiberglass bodywork and the last hurrah for its four-cam, four-cylinder engine. 
The technology in racing during the mid 60s was shifting from carburetors to fuel injection. Porsche began experimenting and the Bosch injection system proved to be the most reliable. Though the performance did not increase, it did provide superior throttle response over the Weber carburetors, and it was easier to tune. To compliment the new engine, a new body was created which reduced drag levels. Porsche dubbed the resulting car, with its new engine and body work, the 906E, with the 'E' representing 'Einspritzung, or injection.
With the car retiring after the 2017 LMP WEC season, the Porsche team decided to throw it a truly memorable send-off. Freed from any restrictions brought upon by strict regulations in the class it competed in, Porsche threw out the rulebook and established a new benchmark. Amongst the notable parting gifts was a significant horsepower bump, increasing the turbo V4 to 720 horsepower from 500 horsepower. Additionally, the electric motor received a 10% boost, now generating 440 horsepower. In total this gave the 919 a remarkable 1160 horsepower.
Porsche 2708 Indy
Porsche again attempted to enter CART in 1987. This time it would be a full factory effort, chassis and all. The car had an aluminum-plastic monocoque chassis attached to a 2.6 Liter, 800hp V8. Information gained from their 1980 bid would be used to build the car. This was their first mistake. Indy had stepped up their game over that seven year span. The pole speed at Indy had advanced from 192 mph in 1980 to 215 mph in 1987. It was a different world.
Porsche has announced the introduction of the new 2007 911 GT3 RSR (type 997) for the American Le Mans Series and other world GT racing venues. The latest version of the most successful racing sports car in history is based on the street production model 911 GT3 RS (model year 2007) and was launched in late 2006. The 911 GT3 RSR has wider rear fenders and rear track to improve performance capabilities over its predecessor. The car has also been developed to fit into the 1,225 kg class. The new car is built in accordance with the ACO LMGT2 Regulations and the FIA Article 257.
In 1983 Porsche produced a stunning one-of road car for TAG owner Mansour Ojjeh. Based on a 934 chassis, it was designed to mimic the potent 935 racecars and subsequently became the one of the first slantnoses. Both the front and rear sections were made similar to the potent 935 race car which dominated the Group 5 Championship. This silhouette series allowed radical modifications which contributed to the repositioned nose, ultra-wdie flares and extended rear bodywork.
Porsche 787
The Porsche 787 is a Formula One (F1) racing car built and raced by Porsche for one year in 1961. The first car (a prototype) was created from the experimental Porsche F2 car with chassis number 718/2-05. The 1961 Porsche 787 was the first Porsche with fuel injection, 6-speed transmission and coil springs in all corners. Only two 787s, serial numbers 78701 and 78702, were ever built. Due to their lack of power and poor handling it was retired.
The Porsche 962 arrived on scene in 1984 as essentially a Porsche 956 for the IMSA/US market. A biturbo version was used in competition racing in Europe, while an IMSA version with a turbocharger featured in North America. The 962 C was based on the 956, with a 120 millimetre longer wheelbase and competed in LeMans. It differed from the IMSA version. The driver trio Stuck/Bell/Holbert was victorious at Le Mans in 1987. Porsche offered the 962 to privateers to race on their own and they were hugely successful.
In 1978, the works team fields two 911 SC at the East African Safari Rally. The name of game is to survive 5,000 kilometres of the toughest tracks in sweltering heat and torrential rain. The conditions take their toll: of the 72 starters, 13 reach the finish line. Martini Racing Porsche System Engineering signs on two specialists to drive: Sweden’s Björn Waldegård (Start No. 5) and Kenyan Vic Preston Jnr (Start No. 14).
The chassis number 718-046 of a 1961 718 RS 61 Coupé was used for a new car called 718 GTR in 1962.. The Coupé version was developed from this RS 61 donor and was initially fitted with a 4-cylinder engine. This car was also upgraded to an 8-cylinder F1 derived engine which produced 210 horsepower (160 kW). The car was also fitted with disc brakes. A GTR Coupé driven Jo Bonnier and Carlo Maria Abate won the 1963 Targa Florio making it three wins at the event for a 718 car.
For the 1969 racing season an absolutely new Porsche 917 with 4.5-litre 12-cylinder engine was created. Ferdinand Piëch relied on the skilfulness of Hans Mezger, who was responsible for the overall construction of the vehicle and its engine. The aim was to create the fastest racing car ever. Short and long tail versions were developed, called as the 917 K ("Kurz" = short in German) and the 917 LH ("Langheck" = long tail). The first car was assembled in December 1968.
The 935/78 was the ultimate expression of the 911 factory race car before Porsche officially withdrew from motor sport. Raced under the Group 5 silhouette series, great liberties were taken with the design and the result was nicknamed ‘Moby Dick’ for its large size and huge overhangs. The 935/78 was built under Porsche's Chief Racing by Norbert Singer for high speeds at Le Mans. Due to the advanced shape of the car 227 mph or 366 km/h was possible.
Porsche 908/02 Flunder
The 908/02 K Spyder and 908 K Flunder Spyder were basically the same cars with slightly different bodyworks. If you look at the non-Flunder Spyder, you see that the body drops after the front wheel arch and rises again before the rear wheel arch. In the Flunder version, this concavity doesn't exist. The difference between the two versions was mainly visual, no difference in racing use. The first competition the Flunder was entered, was the Nürburgring 1000 km on June 1, 1969.
The “shark fins” on the tail gave the Porsche 917 KH 1971 greater directional stability and reduced wind resistance by 11 percent. In 1971 a veritable armada of six Porsche 917s started at Le Mans. The car with start number 22 was special. The white race car with the characteristic Martini stripes had the new “shark fins” on the tail that Porsche had first used in pretraining in April. This 917 was also the first Porsche with a magnesium tubular frame to be used in a race.
Porsche 906
Developed for endurance sports car racing, the 906 was a street-legal racing car that raced in the FIA's Group 4 class against cars like the Ferrari Dino 206 P. They often won their class behind the much larger prototypes such as the Ford GT40 Mk II and Ferrari 330 P3/4. Based off the same principles as the 904, the 906 used a boxed steel chassis with a fiberglass body that added rigidity to the design. The greatest success of the Porsche Carrera 6 "Standard" was undoubtedly the victory at the Targa Florio 1966.
Because the traditional pre-test is cancelled in 1981, Porsche is forced to start at Le Mans without testing. None the less, the race ends successfully: Jacky Ickx and Derek Bell win almost an hour ahead of the second placed competitor – right in time for the 50th anniversary of Dr. Ing. h.c. F. Porsche AG, and 30 years after Porsche’s first start at Le Mans.
In 1984 Porsche offered a full works-specification car known as the 956B. This provided the New-Man Joest Racing team with a winning formula and they dominated the 1985 24 Hours of Le Mans with a resounding victory. One of the main differences between the customer 956 and the 956B was the Bosch Motronic engine management. This allowed more precise ignition and injection which in turn provided better economy and more power.
The 1961 4-cylinder special Spyder is the car that became the 1962 8-cylinder W-RS Spyder. It started during the 1961 racing season, when three special 718 racing cars were created for the factory team. Two of those special cars were built as coupés and one as a Spyder - with chassis number 718-047. For the 1962 season, the car got some changes and became known as the Porsche 718/8 W-RS Spyder. Out went the four cylinder and in came an eight-cylinder engine from the Porsche F1 race car (enlarged to 2 liters).
The Group 4 racer based on the 911 Turbo (930) was called 934 and the Group 5 Porsche was called 935. The first version of the 935 looked similar to the 911 Carrera RSR. The first customers for 935 were Martini Racing and Kremer Racing. The Martini car was a full factory development, while Kremer made its own enhancements already before the first race. By 1977, the 935 was sold as a customer car for these series to race against cars like the BMW CSL.
Porsche 718/2 F2
In 1959 Porsche unveiled the prototype of a narrow, open-wheeled car called the Porsche 718/2 that married the 718's mechanicals with a more traditional single-seat Formula body. For 1960 the production 718/2, starting with chassis number 718201, received revised bodywork, a 6-speed transaxle, and a wheelbase extended by 100 mm. A total of five cars were built. Some of these four-cylinder cars were later raced in F1 under the 1962 1½ litre formula.
The fifth and the last of the 718/2 F2 cars, with chassis number 718/2-05 was an experimental formula racing car. It had the 718/2 chassis, but a different body. The car never got its own type number. It was a one-off car, continuous development project that later evolved into something that became the prototype for the 1961 Porsche 787 F1 car and then even for the 1962 Porsche 804 F1 car. 718/2-05, was first seen at the F2 race on Solitude race track near Stuttgart in July 1960.
In 1967, Porsche brought a new kind of car to Le Mans. The 907 had a small flat-six and incredibly low bodywork, was aerodynamically optimized. Ford won Le Mans, but the 907 proved its worth. At the end of March, 1968, Porsche had four type 907 chassis ready, and brought them to the 24 Hours of Daytona. Fully developed, the 907 now used a 2195 cc aircooled, magnesium alloy flat-eight with Bosch fuel injection, good for 278 bhp at 8700 rpm. The 907LH (lang heck, or long tail) was slippery, stonking fast and wicked hard to drive. And it won.
The story of the 718 coupé began in 1960 when a customer ordered a one-off design from Karosserie Wendler. The car was built on the Porsche 550 chassis. Front-end design came from the 718 Spyder. The roof and the rear end were unique creations by Wendler. For the Le Mans 24h race in June 1961, Porsche created two 718 RS 61 Coupés. They shared the side view silhouette of the Wendler coupé and the rear end of the 718 Spyder, but the front design was original to the car.
Spark Racing Technology is responsible for a big part of the Porsche 99X Electric. This is the racing car Porsche fielded in Formula E 2019 season. Maximum performance in qualifying mode? 335 horsepower and 174 mph. Zero to 100 kilometers per hour is doable in 2.8 seconds, and the minimum weight including the driver is rated at 900 kilograms of which the battery is responsible for 385 kilograms. In race and attack modes, the output is restricted to 272 and 320 PS, respectively. The useable battery capacity is 52 kWh while maximum recuperation is rated at 250 kW.
Porsche 917/20 Le Mans
An attempt to blend the best aerodynamic characteristics from both the short-tailed 917 K and long-tailed 917 LH led to the the 917/20, otherwise known as the Pink Pig. The car's combination of a long body, stubby face, and wide hips gave it a pig-like look, which inspired Porsche designer Anatole Lapine to give the car a pink paint job with butcher cut lines covering the exterior. It was hugely popular at the 1971 Le Mans race, and was the fastest in qualifying and nearly came in fifth place, before a brake failure caused it to crash before the finish line.
In 1967 Porsche prepared a small number of 934 Porsches with 935 Group 5 parts for the Trans-Am and IMSA GTO series. In the end, the 934/5 dominated the Trans-Am series by taking to top five positions in the championship. Ludwig Heimrath became the 1977 Trans-Am champion in his 934/5 by protesting Peter Gregg's highly modified car. Together they humbled the Corvette C3s and the Group 44 Jaguar XJS.
The 993 Carrera RSR takes the 993 Carrera RS formula and makes it even more track-ready by adding a roll-cage and removing carpet, power windows, and a/c. There were just thirty Porsche 911 Cup 3.8 RSR (Type 993) race cars produced for the 1997 season. This model was the last of the breed of air-cooled, naturally-aspirated 911 race cars to come from the Weissach race department before the introduction of the Type 996 water-cooled cars. To find a 993 3.8 RSR that participated in some of the world’s toughest endurance races in period, and survived unscathed and unmolested, is quite rare.
Porsche 550 RS Spyder
The Porsche 550 Spyder was introduced at the 1953 Paris Auto Show. It was simple, small and packed a real punch. It was Porsche's first production racing car. The car was completely street legal, so it could be driven to the races and back home. A really special engine was developed for it, engineered by Ernst Fuhrmann. It was a flat DOHC engine, meaning it had 4 overhead camshafts like the Porsche type 360 design for Formula 1.
The longer tail 908 Spyders were created only with the Flunder body - the body that's upper surface is almost flat between the axles - and not with the "normal" curvy Spyder body. Very few LH Flunders were created, both with 908/02 and 908/01 chassis numbers. 908 LH Flunder Spyder was first used at the 1969 Le Mans 24h race by Jo Siffert and Brian Redman, but they had to retire because of the gearbox failure. The only excellent result was 3rda at the 1970 Le Mans.
The Porsche LMP1-H (Le Mans Prototype Class 1, Hybrid) race car featured a hybrid system that consisted of a turbocharged 2.0V4 petrol engine at the rear axle and an electric motor at the front axle. The electric motor/generator unit (MGU) collected the energy from the front axle under braking and the AER exhaust energy recovery system operated on the exhaust gas - a separate turbocharger ran an alternator.
On 3 January 2019 the 718 Cayman GT4 Clubsport was unveiled in two variants, Competition and Trackday, with first customer cars delivered to customer teams ahead of the 2019 Roar Before the Rolex 24 Hours at Daytona International Speedway. The race car is powered by a 3.8-litre naturally-aspirated flat-six engine producing 425 PS (419 bhp; 313 kW) at 7,500 rpm and 425 N⋅m (313 lb⋅ft) at 6,600 rpm connected to a 6-speed PDK gearbox. The kerb weight is 1,320 kg (2,910 lb). Both variants feature a welded-in roll cage, a six-point harness and race bucket seat, a selection of body parts made of natural-fibre composite materials and race suspension from the 911 GT3 Cup.
Porsche 935/77 (1977)
The 935/77 was a result of relaxed rules and the car got a completely new suspension. The mirrors were incorporated into the front fenders and the rear window had a new angle. The 935/77 was visually very pleasing. While the 935/76 had a single turbocharger, the 2.85-litre engine of the 935/77 had two turbochargers. There was also a "baby" 935/77 built with a smaller 1.4-litre turbocharged engine to compete in the national German DRM series under 2 liter class.
The Porsche 904 Story & History
Porsche’s Type 904, officially called the Carrera GTS because Porsche and Peugeot were in dispute over numeric designations with “0” in them, succeeded the RSK Type 718 as the last sports-racing iteration of the 356 series. Developed after Porsche left Formula One in 1962, the 904 (as it soon became popularly known) was also the last full-competition Porsche that could be readily driven on the street. This is the full story.
The 959 took both first and second place in the 1986 Paris-Dakar rally. For 1986, the Dakar Porsches finally got all the upgrades from the 959 project, including the active four-wheel drive system offering four driving modes adjusted by the computers. This gave Porsche a 1-2 finish, with supporting 959 Dakar engineer Unger Kussmaul crossing the line at sixth. Once the champagne had dried up, Porsche deemed its Dakar program accomplished.
Porsche 910
Porsche 910 was the evolution of the 906 with Ferdinand Piëch as its main driving force and Hans Mezger as the head engineer. It came before 907, 908 and 909. Compared to the 906, the 910 had 13" Formula 1 wheels with central locking (906 had 15" 5-bolt wheels), more rounded design everywhere and the roof panel was removable. Because of the targa roof, the cool-looking gullwing doors of the 906 had to be forgotten.
The racing sportscar is prepared by Porsche following the Le Mans GT2 regulations for the over 1,150 kg weight classification. It features a 3.6-litre engine with two turbo-chargers (KKK 24 with 33.8 mm restrictors), which delivers around 450 hp at 5,750 rpm. Even this racing vehicle, with its suspension featuring a McPherson front axle and Porsche multi-link rear axle with LSA system, closely resembles its production relative. Utilizing a steel 993 Twin Turbo chassis with modifications for racing, scored numerous victories in a wide variety of racing venues.
The Porsche 956 was a Group C sports-prototype racing car designed by Norbert Singer and built by Porsche in 1982 for the FIA World Sportscar Championship. It was later upgraded to the 956B in 1984. In 1983, driven by Stefan Bellof, this car established a record that would stand for 35 years, lapping the famed 20.832 km (12.93 mi) Nürburgring Nordschleife in 6:11.13 during qualifying for the 1000 km Sports Car race.
Introduced in 1969, the three-litre 908/2 is an evolution of the Porsche 908K Coupe. As the rule book for the season no longer required a minimum windscreen height nor the requirement to run a spare wheel, Porsche opted for a much lighter Spyder body; which looked like a chopped version of the short-tail Coupe used in 1968. The Spyder body was perfectly suited for high downforce races like the Nürburgring 1000 km and the Targa Florio. It was also about 100 kg lighter than the Coupe.
Porsche 917/10 Turbo
The first turbo-Porsche, Can-Am winner 1972, Interserie winner 1972, 1973. The first ever publically seen turbocharged Porsche was the 917/10 Turbo with chassis number 917/10-011. It was entered for the June 11, 1972 Can-Am Mosport race. Mark Donohue was fastest in the qualification with it, but scored second in the 80 laps race after the 8.1-litre McLaren. The Porsche Turbo era had begun. Eight 917/10 were racing in 1972 in Can-Am and in Interserie.
The 2015 season Porsche released a new version of their 919 LMP1 prototype which was reshaped and significantly upgraded to the Premiere class which uses an 8 megajoule hybrid electric system. It follows the 2014 car which had competitive but lackluster year against Audi and Toyota. Combined with a 2 litre, twin turbo V4 gasoline engine is the 8 megajoule lithium-ion battery which powers the front electric engine for a total power output nearing 900 to 1000 bhp.
Porsche 645 Spyder, Solitude 1956, Richard von Frankenburg
Planned as a successor to the Porsche 550. A one off prototype was the 1956 super-light design utilising one of the spare 550 frames – 550-098 called ‘Mickey Maus’ which, with Richard von Frankenberg at the wheel, was reduced to a melted wreck that same year in a spectacular crash at the Avus race track. Known as Type 645, it was the beginnings of the new Type 718 Porsche with a shorter wheel base and unique suspension.
The third-generation 919 Hybrid (2016 MY) is powered by a turbocharged four-cylinder, two-litre petrol engine delivering almost 500 hp that drives the rear axle. The V4 engine, which is fully load-bearing, is turbocharged and features 4-valves per cylinder, DOHC, a Garrett turbocharger, direct fuel injection and an aluminium cylinder crankcase. In addition, the electric motor delivering more than 400 hp to the front axle. The latter is fed by two energy recovery systems.