2009 INFINITI G: What's New, Specs & Features

Last updated August 4, 2026

The biggest change for the 2009 INFINITI G is the arrival of the first G37 Convertible. It is a major expansion year overall, with the sedan moving from G35 to G37 power, a new 7-speed automatic, and an AWD G37x coupe joining the family.

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About the 2009 INFINITI G

2nd-generation V36 family; sedan in its 3rd year, coupe in its 2nd year, and convertible in its debut year.

INFINITI positioned the G as a luxury sport car range built around strong V6 performance, rear-drive feel, and a crafted, driver-focused cabin with Japanese design cues. It was meant to give shoppers a more emotional, performance-first alternative to mainstream entry-luxury rivals, while still offering leather seating, upscale materials, and useful technology. The range stretched from practical sedan to sleek coupe to hardtop convertible, with AWD available for buyers in colder climates.

The 2009 G spans sedan, coupe, and retractable-hardtop convertible body styles, with rear-wheel drive or AWD. The comfort-focused Journey adds everyday convenience features, the G37x brings heated front seats and AWD, and the manual G37 Sport adds larger brakes and more supportive front seats.

What changed, by category

Structural

The first G37 Convertible joined the lineup with a retractable hardtop, expanding the G beyond sedan and coupe body styles.

Powertrain

The sedan changed from G35 to G37 and adopted the coupe's 3.7-liter V6. Automatic G models moved to a 7-speed transmission with rev-matched downshifts, and the coupe gained a new G37x AWD version.

Styling

Scratch Shield self-healing clearcoat became standard across the lineup.

2009 INFINITI G specs and features by trim

Feature	2009 INFINITI GG370 in stock	2009 INFINITI GG37x0 in stock	2009 INFINITI GG37 Sport0 in stock	2009 INFINITI GG37 Journey0 in stock
Engine	V6, 3.7 Liter	V6, 3.7 Liter	V6, 3.7 Liter	V6, 3.7 Liter
Transmission	Automatic, 7-Spd w/Overdrive & Manual Mode	Automatic, 7-Spd w/Overdrive & Manual Mode	Manual, 6-Spd w/Overdrive	Automatic, 7-Spd w/Overdrive & Manual Mode
Drivetrain	RWD	AWD	RWD	RWD
Fuel Type	Gas	Gas	Gas	Gas
MPG City	17–18 mpg	18 mpg	16–17 mpg	18 mpg
MPG Highway	25–26 mpg	25 mpg	24–25 mpg	26 mpg
Horsepower	325–330 hp	328–330 hp	325–330 hp	330 hp
Torque	267–270 lb-ft	269–270 lb-ft	267–270 lb-ft	270 lb-ft
Max Towing	1000 lb	1000 lb	1000 lb	1000 lb
Trunk/Cargo	7.4–13.5 cu-ft	7.4–13.5 cu-ft	7.4–13.5 cu-ft	7.4–13.5 cu-ft
Rear Legroom	27.2–34.7 in	29.8–34.7 in	27.2–34.7 in	29.8–34.7 in
Seats	4–5	4–5	4–5	4–5
Doors	2–4	2–4	2–4	2–4
Safety & Security
Adaptive Cruise Control
Adaptive Headlights
Alarm System
Rain Sensing Windshield Wipers
Rear View Camera
Exterior Features
Alloy Wheels
Fog Lights
Heated Mirrors
Memory Exterior Mirrors
Power Moonroof
Power Retractable Hard Top
Rear Spoiler
Entertainment & Electronics
Built-In Hard Drive
Navigation System
Premium Audio
Satellite Radio
Comfort & Convenience
Auto-Dimming Interior Mirror
Cooled Seats
Dual-Zone Climate Control
Heated Front Seats
Integrated Garage Door Opener
Leather Seats
Memory Driver's Seat
Memory Steering Wheel
Proximity Keyless Entry
Remote Start
Wood Interior Trim

How the 2010 INFINITI G compares

The biggest change for the 2010 INFINITI G is a cabin-focused refresh, led by white-lit gauges, revised trim, and a redesigned center console in automatic models. It is a mild update rather than a full redesign, with refreshed sedan styling and limited-production Anniversary Edition models also joining the range.

See the full 2010 changes

Frequently asked questions

What is the biggest change to the 2009 INFINITI G?

The first G37 Convertible is the biggest change for 2009. Its retractable hardtop expanded the G family beyond the existing sedan and coupe.

How is the 2009 INFINITI G sedan different from the 2008 sedan?

The 2009 sedan changed from G35 to G37 and received a 3.7-liter V6. Automatic versions also moved to a 7-speed transmission with rev-matched downshifts.

Does every 2009 INFINITI G have a 7-speed automatic?

No. Automatic 2009 G models use the 7-speed transmission, while the G37 Sport has a 6-speed manual gearbox.

Is the 2009 INFINITI G coupe offered with AWD?

Yes. The G37x AWD coupe joined the lineup for 2009, pairing the 3.7-liter V6 with the new 7-speed automatic transmission.

Is the 2009 INFINITI G a major change from 2008?

Yes. The lineup added its first convertible, the sedan adopted G37 power, automatic models gained a 7-speed transmission, and the coupe added a G37x AWD version. This was a broad lineup expansion rather than a full redesign.