In 1935, Porsche commissioned the engineering firm ZF to design a limited-slip differential that would perform better.

TAG, who had switched from being just a sponsor with Williams to being a partner with McLaren team boss Ron Dennis, commissioned German sports car manufacturer Porsche to design and build a V6 turbocharged engine.

Between 1972 and 1973, Penske Racing ( along with Donohue as the primary test and development driver ) was commissioned by Porsche to assist with development of the 917 / 10.

Ferdinand Porsche was commissioned to design and construct a full Grand Prix car which led to the innovative but complex Cisitalia 360.

By the late 1960s, Porsche had changed significantly as a company, and executives including owner Ferdinand Porsche were playing with the idea of adding a luxury touring car to the line-up.

Porsche Automobil Holding SE, usually shortened to Porsche () or Porsche SE, a Societas Europaea or European Public Company, is a German holding company with investments in the automotive industry.

h. c. F. Porsche AG ( Porsche AG ), and in June 2007 became a holding company for its stake in Porsche Zwischenholding GmbH ( 50. 1 %) ( which in turn holds 100 % of Porsche AG ) and Volkswagen AG ( 50. 7 %).

As of July 5, 2012, Volkswagen is to acquire the 50. 1 per cent in Porsche's capital that it doesn't already hold from holding company Porsche SE for € 4. 46 billion plus one Volkswagen share.

The company currently produces Porsche 911, Boxster and Cayman sports cars, the Cayenne sport utility vehicle and the four-door Panamera.

Professor Ferdinand Porsche founded the company called " Dr. Ing.

Many regard the 356 as the first Porsche simply because it was the first model sold by the fledgling company.

In 1964, after some success in motor-racing, namely with the Porsche 550 Spyder, the company launched the Porsche 911 another air-cooled, rear-engined sports car, this time with a six-cylinder " boxer " engine.

In 1972, the company's legal form was changed from Kommanditgesellschaft ( KG ), or limited partnership, to Aktiengesellschaft ( AG ), or public limited company, because Ferry Porsche and his sister, Louise Piëch, felt their generation members did not team up well.

F. A. Porsche founded his own design company, Porsche Design, which is renowned for exclusive sunglasses, watches, furniture, and many other luxury articles.

Wiedeking took over the chairmanship of the board at a time when Porsche appeared vulnerable to a takeover by a larger company.

During his long tenure, Wiedeking has transformed Porsche into a very efficient and profitable company.

The company has always had a close relationship with, initially, the Volkswagen ( VW ) marque, and later, the Volkswagen Group ( which also owns Audi AG ), because the first Volkswagen Beetle was designed by Ferdinand Porsche.

On 16 September 2008, Porsche increased its holdings by another 4. 89 %, in effect taking control of the company, with more than 35 % of the voting rights.

h. c. F. Porsche AG becoming a holding company, renamed " Porsche Automobil Holding SE ", and a new Dr Ing.

In 1952, Porsche constructed an assembly plant ( Werk 2 ) across the street from Reutter Karosserie ; the main road in front of Werk 1, the oldest Porsche building, is now known as Porschestrasse.

* Wilhelm Reutter, founder of Reutter Carosserie-Werke in Stuttgart, now Porsche and Recaro seats

Project C, which has come to be known as the Lada 2116 or Lada Silhouette, is a family car jointly developed with input from both Porsche and Renault, is intended to finally replace the Classic models.

In training for that race, the late Stefan Bellof set the all-time lap record for the Nordschleife in his Porsche 956, which is still unbeaten at 6: 11. 13, or over on average ( partially because no major racing has taken place there since 1984 ).

Since its inception in 1949, Porsche has manufactured only six front-engined models, four of which were coupes, including the 928.

As of September 2011, Porsche owns 50. 73 % of the voting rights in Volkswagen AG, and 50. 1 % of Porsche Zwischenholding GmbH, which owns 100 % of Dr. Ing.

During December 2009, Porsche SE lost control of Porsche Zwischenholding GmbH, which as a result is now a joint venture between Porsche SE and Volkswagen AG.

h. c. F. Porsche AG ( which stands for Doktor Ingenieur honoris causa Ferdinand Porsche Aktiengesellschaft ), is responsible for the actual production and manufacture of the Porsche automobile line.

The two companies collaborated in 1969 to make the VW-Porsche 914 and 914-6, whereby the 914-6 had a Porsche engine, and the 914 had a Volkswagen engine, in 1976 with the Porsche 912E ( USA only ) and the Porsche 924, which used many Audi components, and was built at Audi's Neckarsulm factory.

In late 2005, Porsche took an 18. 65 % stake in the Volkswagen Group, further cementing their relationship, and preventing a takeover of Volkswagen Group, which was rumoured at the time.

Porsche then formally announced in a press statement that it did not intend to take over Volkswagen Group ( it would set its offer price at the lowest possible legal value ) but intended the move to avoid a competitor taking a large stake, and to stop hedge funds dismantling Volkswagen Group, which is Porsche's most important partner.

There was an Extraordinary General Meeting ( EGM ) for Porsche AG shareholders which took place on 26 June 2007, at the Porsche Arena in Stuttgart, Germany to discuss the change to the company structure.

In 1969, facing more experienced prototypes and the new yet still unreliable 4. 5 L flat-12 powered Porsche 917s, the winners Jacky Ickx / Jackie Oliver managed to beat the remaining 3. 0 litre Porsche 908 by just a few seconds with the already outdated GT40 ( in the very car that had won in 1968-the legendary GT40P / 1075 ).

In 1970, the revised Porsche 917 dominated, and the GT40 had become obsolete.

This design marked a major change in direction for Porsche ( started with the introduction of the Porsche 924 in 1976 ), whose cars had until then used only rear-or mid-mounted air-cooled flat engines with four or six cylinders.

The first Chief Executive Officer ( CEO ) of Porsche AG was Dr. Ernst Fuhrmann, who had been working in the company's engine development.

As of June 2006, the Porsche AG stake in VW AG had risen to 25. 1 %, giving Porsche a blocking minority, whereby Porsche can veto large corporate decisions undertaken by VW AG.

As Porsche had no strategic interest in the company, on 19 January, they offered the minimum price in that mandatory takeover bid.

The front-engine, rear wheel drive arrangement was normal for most other manufacturers, but it was unusual for Porsche having previously only used mid-or rear-mounted engines of a boxer configuration, all of which had been air-cooled.

Internally, Porsche called it 931 ( left hand drive ) and 932 ( right hand drive ), much like the 911 Carrera Turbo, which had been " Type 930 ".

By adding an intercooler, increasing compression to 8. 5: 1 as well as various other little changes, Porsche was able to develop the 924 Turbo into the race car they had wanted, dubbing it the 924 Carrera GT.

Production was moved from the Audi plant in Neckarsulm ( where the 924 and 944 had been manufactured under contract to Porsche ), to Porsche's own factory in Zuffenhausen.

After updating the 911 line-up to include both a more powerful 911S and a less expensive 911T, Porsche executives began to feel that the 912 had become redundant, that the 911 platform was sufficiently diverse and that pricing had largely come into line with market expectations.