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The GP2 Series, GP2 for short, is a form of open wheel motor racing introduced in 2005 following the discontinuation of the long-term Formula One feeder series, Formula 3000. The format was conceived by Bernie Ecclestone and Flavio Briatore, while Ecclestone also has the rights to the name GP1.〔http://www.grandprix.com/ns/ns15388.html grandprix.com August 11, 2005〕 In 2010 the GP3 Series class was launched, as a feeder class for the GP2 series.〔http://www.autosport.com/news/report.php/id/71098 autosport.com October 3, 2008〕 Designed to make racing affordable for the teams and to make it the perfect training ground for life in Formula One, GP2 has made it mandatory for all of the teams to use the same chassis, engine and tyre supplier so that true driver ability is reflected. All but three races have taken place as support races at Formula One race weekends to boost the series' profile, to give drivers experience of the Grand Prix environment, and to take advantage of the infrastructure (marshals, medical facilities etc.) in place for a Formula One event. GP2 mainly races on European circuits, but has appearances on other international race tracks as well with their most recent races in the 2012 season at the Sepang International Circuit in Malaysia and the Marina Bay Street Circuit in Singapore. Many drivers have used GP2 as a stepping stone into Formula One. The 2005 Champion Nico Rosberg was hired by the Williams team for the 2006 F1 campaign, 2006 GP2 winner Lewis Hamilton made the transition to F1 the following year with McLaren and the 2007 Champion Timo Glock to Toyota for the 2008 F1 season. 2009 GP2 champion Nico Hülkenberg moved up to a Williams F1 race driver in the 2010 Formula 1 season. In addition, all runners up —Heikki Kovalainen (2005), Nelson Piquet, Jr. (2006) and Lucas di Grassi (2007)— became Renault test drivers the following year. All three earned F1 seats, but have since been replaced. Karun Chandhok, Bruno Senna and Vitaly Petrov were also granted an F1 seat in 2010. For 2011 Pastor Maldonado was granted the hot seat at Williams. This meant that Nico Hülkenberg was deposed by Williams. Sergio Pérez was given the drive alongside Kamui Kobayashi, another former GP2 driver and GP2 Asia Series winner, at Sauber. Jérôme d'Ambrosio got his Virgin Racing drive for the 2011 season. However, some drivers have reached Formula One without competing in GP2, for example Paul di Resta, Daniel Ricciardo, Jean-Éric Vergne, Valtteri Bottas, and Kevin Magnussen. During 2011, it was announced that in 2012 the GP2 and GP2 Asia Series would combine to make a single, longer GP2 series. ==GP2 Series cars== The GP2 Series car is used by all of the teams, and features a Dallara carbon-fiber monocoque chassis powered by a Mecachrome normally-aspirated fuel-injected V8 engine and Pirelli dry slick and rain treaded tyres. ;Chassis: The 2009 specification GP2 Car has been designed by Dallara Automobili. The 2006 GP2 car featured a biplane rear wing, with the triplane rear wing used in previous seasons only to be used at the Monaco race. The front upper and lower wishbones have been reinforced, as have the front and rear suspension uprights. Currently, Dallara GP2/11 are the current chassis since debut in 2011. The price of Dallara GP2/11 GP2 Series cars are approximately €250,000 per car. ;Engine: The 4.0-litre normally-aspirated electronic indirect fuel-injected Mecachrome V8 engine features internal, cartographic and software upgrades designed to improve performance and fuel consumption. The engine produces 620 hp and 500 Nm (398 ft-lb) of torque @ 8000 rpm. GP2 Series engines are rev-limited to 10000 rpm and need a rebuild after 4000 to 4500 km. The valve train is a dual overhead camshaft configuration with four valves per cylinder. The Mecachrome V8 engine weight is . The crankshaft is made of alloy steel, with five main bearing caps. The pistons are forged aluminum alloy, while the connecting rods are machined alloy steel. The electronic engine management system is supplied by Magneti Marelli, firing a high-power inductive (coil-controlled) ignition system. The engine lubrication is a dry sump type, cooled by a single water pump. ;Fuel and lubricants components: Since 2011, Total exclusively providing fuel and lubricants (except Pertamina Fastron lubricant with Rio Haryanto) for all GP2 Series cars. ;Gearbox: The current gearbox has been manufactured by Hewland and features an 8-position barrel with ratchet body and software upgrades as well as a new transverse shafts fixing system designed to facilitate improved gear selection. Currently, GP2 Series gearbox uses 6-speed semi-automatic configuration with electronically-controlled paddle shifters. ;Wheel rims: O.Z. Racing exclusively supplying wheel rims for all GP2 Series cars. ;Tyres: Similar to the 2011 change for Formula 1, Pirelli is now the sole tyre supplier for the series. The GP2 series runs the same compounds as F1. The front tyre size are 245/660 - R13 and rear tyre size are 325/660 - R13. ;Other parts: Brembo is supplying monobloc brake calipers and disc bells, which are exclusive to GP2. Hitco is also supplying carbon brake discs and pads for GP2 Series. The brake discs are 278 x 28 mm in size (similar to Formula One). The car also features internal cooling upgrades, a new water radiator, radiator duct, oil/water heat exchanger, modified oil degasser, new oil and water pipes and new heat exchanger fixing brackets. ;Performance: According to research and pre-season stability tests, the 2005 model can go 0 to 200 km/h (124 mph) in 6.7 seconds. The car has a top speed of 320 km/h (198 mph) meaning that it is the fastest single seater racing car behind Formula One and Indy cars. The 2011 model can go 0 to 200 km/h (124 mph) in 6.6 seconds. The car has a top speed of 332 km/h (206 mph) with the Monza aero configuration. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「GP2 Series」の詳細全文を読む スポンサード リンク
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