The G-series is often referred to as the cousin of the Z-series yet has quite a unique history. The G-series is a line of compact executive/entry-level luxury car produced by Nissan's luxury brand Infiniti.
The first two generations of the Infiniti G (P10 and P11) were sedans based on the Nissan Primera. Beginning with its third generation (V35), the Infiniti G have been rebadged versions of the Nissan Skyline line of sedans and coupes that were exported to the United States and Canada.
The current incarnation is the fourth generation (V36) which introduced the hardtop coupe convertible. The Nissan FM platform, on top of which the third and fourth generations (V35 and V36) of the Infiniti G have been built, also underpins the Nissan 370Z and has shared components with the Infiniti M, Infiniti EX, and Infiniti FX.
The Nissan FM platform is a modern FR automobile layout. The name is derived from the "front midships" location of the engine, referring to the engine's center of mass being located behind the front axle centerline, shifting weight to the middle of the car, leaving the front suspension less encumbered. The engine is pushed as far back to the firewall as possible, creating a weight distribution that's close to 50:50, as well as enabling engineers to place the front wheels as close to the corners as possible for better handling. This platform debuted with the 2001 V35-series Nissan Skyline, and has been used as the basis of nearly all of Nissan's rear and all-wheel drive applications since its inception.
The 11th-generation (V35) Nissan Skyline, introduced in June 2001, was based on Nissan's FM platform, shared with the Nissan 350Z. The V35 was the first Skyline made for export to the United States. There it was sold under the company's luxury brand, Infiniti as the Infiniti G35.
2003 - 2007
In 2007, the redesigned G coupe was unveiled at the 2007 New York International Auto Show and was available for sale as a 2008 model. Unlike the 2007 and 2008 G sedan it was given the new 3.7 L 330 hp (250 kW) V6 VQ37VHR engine but for this one model year still paired with the 5-speed automatic transmission and was named the "G37." In Japan, the G37 joined the updated G Sedan under the Nissan Skyline (V36) nameplate
2007 - 2013