Question: 997 is the internal designation for the Porsche 911 model manufactured and sold by German manufacturer Porsche between 2004 (as Model Year 2005) and 2012, Targa versions of the Carrera 4 and Carrera 4S were also available, which carry on with the "glass canopy" roof design used on all Targa 911s from the Type 993 Generation 911 until the 991, which replaced it in 2012, 993 is the company's internal name for the version of the Porsche 911 model manufactured and sold between late 1993, and early of what year?

full_context: Document 1: 2013 Porsche Supercup: The 2013 Porsche Mobil 1 Supercup season was the 21st Porsche Supercup season. It began on 12 May on Circuit de Catalunya and finished on 3 November at Yas Marina Circuit, after nine races, all of which were support events for the 2013 Formula One season. A new car was introduced for the season as the Porsche 991 – the internal designation for the seventh-generation Porsche 911 – replaced the Porsche 997.
Document 2: Porsche 996: The Porsche 996 is the internal designation for the Porsche 911 model manufactured with first model year 1998 and last 2004. It was replaced by the Type 997 in model year 2005.
Document 3: 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 4: Porsche 993: 993 is the company's internal name for the version of the Porsche 911 model manufactured and sold between late 1993 and early 1998 (model years 1995-1998 in the United States), replacing the 964. Its discontinuation marked the end of air-cooled Porsches, with the 993 being the last air-cooled 911. The 993 generation of the 911 is often referred to as the best and most desirable of the 911 series, not only because of its beauty, but also because its performance is very good, even by modern standards, and the 993 was "the last complete 'modern classic'"; "the 993 was and forever will be that last fresh breath of air that Porsche gave the world; elegance and muscle all in one package." The book "Porsche 993 - Essential Companion" refers to the 993 as the "King of Porsche," and it is generally acknowledged as "The purists' Holy Grail."
Document 5: Porsche 919 Hybrid: The Porsche 919 Hybrid is a sports-prototype racing car constructed by the German car manufacturer Porsche for use in the Le Mans Prototype 1-Hybrid (LMP1-H) category of the FIA World Endurance Championship for factory-supported hybrid-powered cars. It is the first sports-prototype built by Porsche since the RS Spyder, the first sports-prototype built by Porsche to compete in a top category of sportscar racing since the Porsche 911 GT1-98 and Porsche LMP1-98 and the first sports-prototype to be raced by Porsche as a racing team since the Porsche 911 GT1-98 and Porsche LMP1-98. It uses a 2.0 L four-cylinder turbocharged engine with a battery-based hybrid system. The car made its competitive debut at the 2014 6 Hours of Silverstone, the opening round of the 2014 season. The 919 Hybrid project is scheduled to be discontinued at the end of the 2017 season to allow Porsche to focus on entering Formula E.
Document 6: 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 7: 9ff GT9: The 9ff GT9 is a sports car based loosely on the Porsche 911, built by German tuning company 9ff, founded by Jan Fatthauer. Based on the Porsche 911 (997) GT3; the cars are extensively rebuilt and fitted with a heavily modified 4.0 litre flat 6 that produces 738 to , depending on the configuration. One of the major differences from a normal 911 is the positioning of the engine; whilst every 911 throughout Porsche's history (excluding the Porsche 911 GT1 racer) has been rear-engined, the GT9 is mid-engined for better weight distribution.
Document 8: 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 9: 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 10: TechArt 997 Carrera: The TechArt 997 Carrera, known also as the TechArt Coupe and TechArt Cabrio, depending on the body style, is a tuning program for Porsche 997 models including the Carrera, Carrera Cabriolet, Carrera 4, Carrera 4 Cabriolet, Carrera S, Carrera S Cabriolet, Carrera 4S, and Carrera 4S Cabriolet. As with other TechArt products, the kit includes the customer's choice of options, including a body kit, engine upgrades, interior refitment, and custom wheels.
Document 11: Audi Q7: The Audi Q7 is a full-size luxury crossover SUV of the German manufacturer Audi, unveiled in September 2002 at the Frankfurt Motor Show. Production of the Q7 began in autumn of 2005 at the Volkswagen Bratislava Plant in Bratislava, Slovakia. It is the first SUV offering from Audi and went on sale in 2003. Later, Audi's second SUV, the Q5, was unveiled as a 2009 model. Audi has since unveiled a third SUV model, the Q3, which went on sale in the 3rd quarter of 2011. The Q7 shares its platform and chassis with the Volkswagen Touareg and the Porsche Cayenne.
Document 12: Porsche Carrera Cup Germany: The Porsche Carrera Cup Germany, also known as Porsche Carrera Cup Deutschland, between 1986-1989 as Porsche 944 Turbo Cup; is a one-make racing series by Porsche based in Germany.
Document 13: Porsche 997: 997 is the internal designation for the Porsche 911 model manufactured and sold by German manufacturer Porsche between 2004 (as Model Year 2005) and 2012. Production of the Carrera and Carrera S coupés began in early 2004, all-wheel drive Carrera 4 and Carrera 4S versions began shipping in November 2005, Turbo and GT3 derivatives went on sale in late 2006 and the 911 GT2 in 2007. In addition to the coupé and cabriolet versions, Targa versions of the Carrera 4 and Carrera 4S were also available, which carry on with the "glass canopy" roof design used on all Targa 911s from the Type 993 Generation 911 until the 991, which replaced it in 2012.
Document 14: Porsche 991: The Porsche 991 is the internal designation for the seventh generation Porsche 911 which was unveiled at the 2011 Frankfurt Motor Show on 15 September as the replacement for the 997. The 991 is an entirely new platform, only the third since the original 911 launched in 1963 (the 996 of 1999 was the second new platform). The design has taken an evolutionary step, in keeping with the previous generation 997 and 996. The designer of the 991 is Porsche's Chief Designer Michael Mauer.
Document 15: 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
ground_truth: 1998