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.
For the 2009 model the G35 sedan was replaced by the G37 sedan. The G37 sedan was first unveiled at the Geneva Motor Show for the European market. G37 Convertible was introduced in June 2009 Media Release as a 2009 model on the V36 FM platform and is only from a design perspective based on the G Coupe.
In a March 2010 comparison test by Car and Driver, the Infiniti G37 Convertible came in third place out of four cars in a convertible comparison behind the BMW 328i and Audi A5. The 2014 replacement of the fourth generation G37 sedan made its debut at the 2013 North American International Auto Show (NAIAS) and was named Infiniti Q50.