The 2009 G37 is an important vehicle to Infiniti for the coupe market segment. The X is a member of a series of four trim levels for the G37 which include Base, Journey, Sport, and X. The two-door car with its all-wheel drive is positioned to aggressively fill this niche for Infiniti. There is strong competition from vehicles from Honda.

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The 2004 Infiniti G35 X was introduced to compete in the sedan market. The X is a member of a series of two trim levels for the G35 which include X and Base. The four-door car with its all-wheel drive is positioned to aggressively fill this niche for Infiniti. There is strong competition from vehicles from Kia.

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A high point in the sedan market is the Infiniti G35. In 2008 Infiniti rolled out an upgraded version of the G35 with four versions: Base, X, Journey, Sport, and X Sport. Sales for the G35, especially the G35 X, were brisk during 2008 and 2009. The improved reliability and the sporty styling were responsible for the increased interest.

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The restyled G35 X is equipped with a 3.5-liter six-cylinder engine that utilizes 24 valves. The engine is mated to a Jatco five-speed transmission. This has resulted in an increase in horsepower and torque over the 2005 version.

Read more about the 2006 Infiniti G35