Question: Who was the engineer responsible for a specfic make of car by a German automobile manufacturer specializing in high-performance sports cars?

full_context: Document 1: Dario Franchitti: George Dario Marino Franchitti, MBE (born 19 May 1973), known professionally as Dario Franchitti, is a retired Scottish racing driver. He is a four time IndyCar Series champion (2007, 2009, 2010, 2011), a three-time winner of the Indianapolis 500 (2007, 2010, 2012) as well as a winner of the 24 Hours of Daytona (2008). Franchitti started his career in his native United Kingdom in the early 1990s, competing in Formula Vauxhall and Formula Three and was also the winner of the McLaren Autosport BRDC Award in 1992. After Franchitti did not secure a single-seater drive in 1995, he was contracted by the AMG team to compete in touring cars in the DTM and its successor — the International Touring Car Championship. Despite 2 seasons with relative success, the series folded at the end of the 1996 season, again leaving Franchitti without a drive. Mercedes placed Franchitti in CART in 1997 with the Hogan Racing team.
Document 2: Kathy Rude: Kathy Rude (born 1957) is an American sports car driver who was one of the first female drivers to attract international attention. Growing up in Victoria, Canada, she began competing as a teenager in karting events. By her early 20s, after competing in Formula Ford and Formula Atlantic, she attracted the attention of several top-tier car owners, and tested an IndyCar owned by Dick Simon. She was a member of the original North American Toyota factory-sponsored IMSA GT Championship sports car team in 1981. In February 1982, co-driving a factory-sponsored Mazda RX-7 with Allan Moffat and Lee Mueller, she earned a GTU class victory at the 24 Hours of Daytona—the first woman ever to win a major professional sports car event. She signed a deal to make her debut at the Indianapolis 500 in 1984, but during an IMSA sports car event at Brainerd, Minnesota in July 1983, she suffered horrific injuries in a crash which ended her racing career. Noted sports car champion Brian Redman once referred to her as the only female driver he'd encountered who posed a genuine threat to win major professional automobile races. She is now a corporate safe driving instructor and speaker.
Document 3: Porsche in motorsport: Porsche has been successful in many branches of motorsport of which most have been in long distance races.
Document 4: Tony Southgate: Tony Southgate (born 25 May 1940, Coventry, England) is a British engineer and former racing car designer. He designed many successful cars, including Jaguar's Le Mans-winning XJR-9, and cars for almost every type of circuit racing. He was responsible for the chassis design of Ford's RS200 Group B rally car. Southgate was employed as chief designer or technical director for many Formula One teams for over twenty years. These teams included BRM, Shadow and Arrows. Southgate retired after producing the Audi R8C, which was a major influence in the Bentley Speed 8, which won Le Mans in 2003. He continues to be a regular visitor to current and historic race meetings.
Document 5: Porsche 911 GT3: The Porsche 911 GT3 is a high performance version of the Porsche 911 sports car primarily intended for racing. It is a line of high-performance models, which began with the 1973 911 Carrera RS. The GT3, introduced in 1999, is named after the Fédération Internationale de l'Automobile (FIA) Group GT3 class, created in 2005, in which it was designed to compete.
Document 6: Dauer 962 Le Mans: The Dauer 962 Le Mans is a sports car based on the Porsche 962 racing car. Built by German Jochen Dauer's Dauer Racing, a racing version of this car went on to win the 1994 24 Hours of Le Mans with the support of Porsche through the use of regulation loopholes.
Document 7: Graham Hill: Norman Graham Hill {'1': ", '2': ", '3': ", '4': "} (15 February 1929 – 29 November 1975) was a British racing driver and team owner from England, who was twice Formula One World Champion. He is the only driver ever to win the Triple Crown of Motorsport—the 24 Hours of Le Mans, Indianapolis 500 and either the Monaco Grand Prix or the Formula One World Drivers' Championship. He also appeared on TV in the 1970s on a variety of non-sporting programmes including panel games. He liked painting in his spare time.
Document 8: Porsche 911 GT2: The Porsche 911 GT2 is a high-performance sports car built by the German manufacturer Porsche from 1993 to 1998, 2001 to 2005, 2007 to 2012, and then since 2018 (as the "GT2 RS"). It was based on the 911 Turbo, and uses a similar twin-turbocharged engine, but features numerous upgrades, including engine upgrades, larger brakes, and stiffer suspension calibration. The GT2 is significantly lighter than the Turbo due to its use of rear-wheel-drive instead of all-wheel-drive, and the lightening or removal of interior components. As a result, the GT2 is the most expensive and the highest trim level within the 911 lineup.
Document 9: Graham Duxbury: Graham Duxbury (born 1 December 1954) is a South African racing driver, business man, and motorsport commentator. Duxbury won the South African National Drivers Championship in 1982 engineered by Ken Howes driving initially a March 78B before taking delivery of a ground effect March 822. He won the Daytona 24 Hours in 1984 driving for Kreepy Krauly Racing, an all-South African team in a March 83G-Porsche again engineered by Howes. He shared the win with Sarel van der Merwe and Tony Martin.
Document 10: Porsche 968: The Porsche 968 is a sports car made by Porsche AG from 1992 to 1995. It was the final evolution of a line of water-cooled front-engined rear wheel drive models begun almost 20 years earlier with the 924, taking over the entry-level position in the company lineup from the 944 with which it shared about 20% of its parts. The 968 was Porsche's last new front-engined vehicle before the introduction of the Cayenne SUV in 2003.
Document 11: Daimler AG: Daimler AG (] ) is a German multinational automotive corporation. Daimler AG is headquartered in Stuttgart, Baden-Württemberg, Germany. As of 2014, Daimler owns or has shares in a number of car, bus, truck and motorcycle brands including Mercedes-Benz, Mercedes-AMG, Smart Automobile, Detroit Diesel, Freightliner, Western Star, Thomas Built Buses, Setra, BharatBenz, Mitsubishi Fuso, MV Agusta as well as shares in Denza, KAMAZ, Beijing Automotive Group. The luxury Maybach brand was terminated at the end of 2012, but revived in April 2015 as "Mercedes-Maybach" versions of the Mercedes-Benz S-Class and G-Class. In 2016 Daimler sold 3.0 million vehicles. By unit sales, Daimler is the thirteenth-largest car manufacturer and is the largest truck manufacturer in the world. In addition to automobiles, Daimler manufactures buses and provides financial services through its Daimler Financial Services arm. The company is a component of the Euro Stoxx 50 stock market index.
Document 12: Earl Bamber: Earl Anderson Bamber (born 9 July 1990) is a professional racing driver from New Zealand, currently competing as a factory driver for Porsche Motorsport in the FIA World Endurance Championship LMP1 class, the North American WeatherTech SportsCar Championship in the GT Le Mans class and the VLN Endurance Racing Championship Nürburgring. He is the 2014 Porsche Supercup and double Porsche Carrera Cup Asia champion. He is a double Le Mans 24 Hours winner, having won the 2015 24 Hours of Le Mans with Nico Hülkenberg and Nick Tandy and the 2017 24 Hours of Le Mans with Timo Bernhard and Brendon Hartley.
Document 13: Porsche: Dr. Ing. h.c. F. Porsche AG, usually shortened to Porsche AG (] ), is a German automobile manufacturer specializing in high-performance sports cars, SUVs and sedans. Porsche AG is headquartered in Stuttgart, and is owned by Volkswagen AG, which is itself majority-owned by Porsche Automobil Holding SE. Porsche's current lineup includes the 718 Boxster/Cayman, 911, Panamera, Macan and Cayenne.
Document 14: Porsche 944: The Porsche 944 is a sports car built by Porsche from 1982 to 1991. A front-engined, rear-wheel drive mid-level model based on the 924 platform, the 944 was available in coupé or cabriolet body styles, with either naturally aspirated or turbocharged engines
Document 15: Porsche 356: The Porsche 356 is an iconic sports car which was first produced by Austrian company Porsche Konstruktionen GesmbH (1948–1949), and then by German company Dr. Ing. h. c. F. Porsche GmbH (1950–1965). It was Porsche's first production automobile. Earlier cars designed by the Austrian company include Cisitalia Grand Prix race car, the Volkswagen Beetle, and Auto Union Grand Prix cars.
ground_truth: Ken Howes