In relation to motorsport governed by the FIA, Group N referred to a set of regulations providing a set of rules for 'standard' production vehicles for competition, often referred to as the "Showroom Class". This contrasts with the Group A all-out competition production-derived vehicles. Group N cars are limited in terms of modifications made from standard specification. Group N was introduced by the FIA in 1982 to replace the outgoing Group 1 as "standard touring cars". Auto racing (also known as automobile racing or autosport) is a sport involving racing automobiles. ... The Fédération Internationale de lAutomobile, commonly referred to as the FIA, is a non-profit association established in 1904 to represent the interest of motoring organisations and motor car users. ... In relation to motorsport governed by the FIA, Group A referred to a set of regulations providing production-derived vehicles for outright competition. ... 1982 (MCMLXXXII) is a common year starting on Friday of the Gregorian calendar. ...

To qualify for homologation, a minimum of 2500 cars of the competing model have to be built in one year, out of 25,000 for the entire range of the model (eg: 2500 Subaru Impreza WRX, out of 25,000 Subaru Impreza. Homologation is a technical term, derived from the Greek homologos for agree, which is used in English to signify the granting of approval by an official authority. ... WRX redirects here. ... 1997 Subaru Impreza Outback Sport 2005 Subaru Impreza Sport Wagon 2005 Subaru Impreza GX Sport UK in WR Blue For the high-performance versions of the Impreza, see Subaru Impreza WRX and Subaru Impreza WRX STi The Subaru Impreza is a compact car that was first introduced by Subaru in...

Rallying

Under Group N in the Production World Rally Championship, the cars used were modified road cars, often based on turbocharged, four wheel drive versions of standard small cars such as the Subaru Impreza WRX and the Mitsubishi Lancer Evolution, although a wide range of vehicles is homologated by the FIA for use in Group N. The range of modifications allowed is quite narrow - few mechanical engine modifications are allowed (save for lightening within set limits and baffled sumps) although the choice of ECU is free, and this can liberate some extra power itself, and most of the modifications allowed are to promote longevity rather than increased performance, although the boundaries of these two areas are blurring. Originally, Group N meant that all the interior trim had to be present (including the rear seat), whereas this has now changed to allow removal of the trim aside from the dashboard and replacement of the door trim. The springs and dampers are free, as are the internals of the gearbox, providing that the homologated gear ratios and gearchange pattern are respected. This allows the use of 'dog' engagement gearboxes, providing quicker gearchanges and longer gearbox life. There is provision for strengthening of the suspension components and bodyshell, providing this doesn't alter the operating principle. The FIA and many national motorsport associations are moving towards making rallying championships based in Group N, in an attempt to reduce costs, reinforce the link between motorsport and the car that the member of the public drives, and to reduce the environmental impact of motorsport. Rallying (international) or rally racing (US) is a form of automobile racing that takes place on public roads with modified production or specially built road cars. ... Turbocharger Cut-away A turbocharger is a device used in internal-combustion engines to increase the power output of the engine by increasing the mass of oxygen and fuel entering the engine. ... Four wheel drive or 4x4, is a type of four wheeled vehicle drivetrain configuration that enables all four wheels to receive power from the engine simultaneously in order to provide maximum traction. ... WRX redirects here. ... 2006 Mitsubishi Lancer Evolution IX GSR The Lancer Evolution (colloquially known as the Evo) is Mitsubishis flagship sports car, initially based on the Mitsubishi Lancer sedan. ... An Engine Control Unit (ECU) (also known as an engine management system) is an electronic device, basically a computer, that is part of an internal combustion engine, which reads several sensors in the engine and uses the information to control the fuel injection and ignition systems of the engine. ...