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?

Context articles: Porsche 911 GT2
2013 Porsche Supercup
TechArt 997 Carrera
Porsche 993
Porsche 919 Hybrid
Porsche 997
Porsche 996
Porsche 991
Porsche GT3 Cup Challenge Australia
9ff GT9

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.
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.
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.
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."
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.
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.
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.
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.
The Porsche GT3 Cup Challenge Australia is a sports car racing series open to drivers of Porsche 911 GT3 Cup cars.
 The series was first held in 2008 to fill the void between club racing and the Australian Carrera Cup Championship and Australian GT Championship for Porsche owners.
 The series primarily consists of Type 996 and Type 997 Porsche 911 GT3 Cup cars, with each model competing in a different class, though other models are eligible to compete.
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.