Infiniti G35 and G37: the G-line era and its move to Q40, Q50 and Q60

Infiniti G35 and G37 (the G-line era) history

Infiniti’s own history credits the G35 with a turnaround. The sedan was introduced in March 2002 as a 2003 model, the G35 Coupe followed that November and the FX crossover in January 2003, and Infiniti sales passed 100,000 for the first time in 2003, reaching 119,000.

The G35 was built on Nissan’s FM (front mid-ship) platform, which places the engine behind the front axle for better weight balance. The sedan launched with a 260-hp 3.5-liter V6 and the coupe with 280 hp.

The 3.7-liter G37 followed, and Infiniti added a G37 Convertible with a folding hardtop and 325 hp in 2009. Under the 2014 renaming the G37 Coupe and Convertible became the Q60 and the G37 sedan the Q40, while the new Q50 and, from 2017, an all-new Q60 coupe carried the line forward with the 400-hp Red Sport 400 versions.[1],[2],[3],[4],[5],[6]

Years and production numbers

Generations and key variants

Engine and drivetrain facts

• The 2003 G35 sedan’s 24-valve 3.5-liter DOHC V6 made 260 hp and 260 lb-ft; the coupe’s version made 280 hp.
• The G37 sedan’s 3.7-liter VQ37HR V6 with VVEL carried into the 2015 Q40 at 328 hp and 269 lb-ft, with a 7,500-rpm redline.
• The Red Sport 400’s VR-series 3.0-liter twin-turbo V6 makes 400 hp at 6,400 rpm and 350 lb-ft from 1,600 to 5,200 rpm, with 14.7 psi of boost versus 9.5 psi in the 300-hp version.

Sources:[2],[3],[6],[9]

What changed over the years

1. March 2002The 2003 G35 sport sedan joins the lineup.
2. November 2002The G35 Sport Coupe goes on sale.
3. 2003Infiniti sales pass 100,000 for the first time (119,000).
4. 2009The G37 Convertible arrives with a three-piece folding hardtop.
5. 2014 model yearG37 Coupe and Convertible renamed Q60; the all-new Q50 launches.
6. 2015 model yearG37 sedan renamed Q40.
7. 2016 model yearQ50 Red Sport 400 arrives with a 400-hp twin-turbo V6.
8. 2017 model yearAll-new Q60 coupe, including a Red Sport 400.

Sources:[1],[2],[3],[4],[5],[6],[7],[8]

What to check before you buy one

• Check the passenger air bag recalls by VIN: 10V175 for 2005–2007 G35s and 08V521 for 2007–2008 G35 Sedans and 2008 G37 Coupes.
• Confirm body style and transmission from the VIN and paperwork. The G35 and G37 were sold as sedans and coupes, with manual and automatic gearboxes depending on version.
• Do not mix up the Q40 and Q50 in listings. The Q40 is the renamed G37 sedan; the Q50 is a different, newer car.

Model-specific problems by generation are tracked on our Infiniti G37 known issues page.

How to verify a Infiniti G35 and G37 (the G-line era)'s factory options

An Infiniti's model, engine and drivetrain are fixed at the factory. CarWhere decodes the 17-character VIN and, where licensed factory build data exists, lists the equipment the car was built with. It does not promise a complete option list for every VIN.