2012 INFINITI G: What's New, Specs & Features

Last updated August 4, 2026

The main change for 2012 is a revised sport grille on the rear- and all-wheel-drive G37 Sport Appearance Edition sedans. Otherwise, this is a light-update year, with only minor special-edition revisions and no broad mechanical redesign.

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About the 2012 INFINITI G

Fourth-generation G line (V36), late-cycle year; sedan is in its sixth model year, coupe in its fifth, and convertible in its fourth.

INFINITI positions the G as a driver-focused luxury car family built around strong V6 performance, athletic handling and a cockpit-style cabin with Japanese design touches. In sedan form it is the brand’s sporty everyday luxury car; in coupe and convertible form it leans harder into style and performance. What sets the G apart from many rivals is that even mainstream trims emphasize acceleration and road feel first, while still delivering leather interiors, available AWD and upscale technology.

The 2012 lineup ranges from the comfort-focused G25 sedans with a 2.5-liter V6 to stronger G37 sedans, coupes and convertibles powered by a 3.7-liter V6. The G37 Sport pairs that larger engine with a 6-speed manual transmission and upgraded brakes and steering. The 348-hp IPL G Coupe adds a unique body kit, sport-tuned suspension, Bose audio and navigation.

What changed, by category

Styling

Both G37 Sport Appearance Edition sedans received a revised sport grille, while the G37 Limited Edition had minor appearance and content revisions. The IPL G Coupe's rear spoiler became standard rather than optional.

2012 INFINITI G specs and features by trim

Feature	2012 INFINITI GG250 in stock	2012 INFINITI GG373 in stock	2012 INFINITI GIPL0 in stock	2012 INFINITI GG25x0 in stock	2012 INFINITI GG37x2 in stock	2012 INFINITI GG37 Sport1 in stock	2012 INFINITI GG25 Journey0 in stock	2012 INFINITI GG37 Journey1 in stock	2012 INFINITI GG37 Limited Edition0 in stock	2012 INFINITI GG37x Limited Edition0 in stock	2012 INFINITI GG37 Sport Appearance Edition0 in stock	2012 INFINITI GG37x Sport Appearance Edition1 in stock
Engine	V6, 2.5 Liter	V6, 3.7 Liter	V6, 3.7 Liter	V6, 2.5 Liter	V6, 3.7 Liter	V6, 3.7 Liter	V6, 2.5 Liter	V6, 3.7 Liter	V6, 3.7 Liter	V6, 3.7 Liter	V6, 3.7 Liter	V6, 3.7 Liter
Transmission	Auto, 7-Spd w/Manual Md	Auto, 7-Spd w/Manual Md	Auto, 7-Spd w/Manual Md	Auto, 7-Spd w/Manual Md	Auto, 7-Spd w/Manual Md	Manual, 6-Spd	Auto, 7-Spd w/Manual Md	Auto, 7-Spd w/Manual Md	Auto, 7-Spd w/Manual Md	Auto, 7-Spd w/Manual Md	Auto, 7-Spd w/Manual Md	Auto, 7-Spd w/Manual Md
Drivetrain	RWD	RWD	RWD	AWD	AWD	RWD	RWD	RWD	RWD	AWD	RWD	AWD
Fuel Type	Gas	Gas	Gas	Gas	Gas	Gas	Gas	Gas	Gas	Gas	Gas	Gas
MPG City	20 mpg	17–19 mpg	19 mpg	19 mpg	18 mpg	16–17 mpg	20 mpg	19 mpg	19 mpg	18 mpg	19 mpg	18 mpg
MPG Highway	29 mpg	25–27 mpg	27 mpg	27 mpg	25 mpg	24–25 mpg	29 mpg	27 mpg	27 mpg	25 mpg	27 mpg	25 mpg
Horsepower	218 hp	325–330 hp	348 hp	218 hp	328–330 hp	325–330 hp	218 hp	328–330 hp	328 hp	328 hp	328 hp	328 hp
Torque	187 lb-ft	267–270 lb-ft	276 lb-ft	187 lb-ft	269–270 lb-ft	267–270 lb-ft	187 lb-ft	269–270 lb-ft	269 lb-ft	269 lb-ft	269 lb-ft	269 lb-ft
Max Towing	1000 lb	1000 lb	1000 lb	1000 lb	1000 lb	1000 lb	1000 lb	1000 lb	1000 lb	1000 lb	1000 lb	1000 lb
Trunk/Cargo	13.5 cu-ft	7.4–10.3 cu-ft	7.4 cu-ft	13.5 cu-ft	7.4–13.5 cu-ft	7.4–13.5 cu-ft	13.5 cu-ft	7.4–13.5 cu-ft	13.5 cu-ft	13.5 cu-ft	13.5 cu-ft	13.5 cu-ft
Rear Legroom	34.7 in	27.2–29.8 in	29.8 in	34.7 in	29.8–34.7 in	27.2–34.7 in	34.7 in	29.8–34.7 in	34.7 in	34.7 in	34.7 in	34.7 in
Seats	5	4	4	5	4–5	4–5	5	4–5	5	5	5	5
Doors	4	2	2	4	2–4	2–4	4	2–4	4	4	4	4
Safety & Security
Adaptive Cruise Control
Alarm System
Automatic Headlights
Rain Sensing Windshield Wipers
Rear Parking Sensors
Rear View Camera
Exterior Features
Alloy Wheels
Fog Lights
Heated Mirrors
Memory Exterior Mirrors
Power Moonroof
Power Folding Exterior Mirrors
Power Retractable Hard Top
Rear Spoiler
Entertainment & Electronics
Bluetooth
Navigation System
Premium Audio
Satellite Radio
Subwoofer
USB Ports
Comfort & Convenience
Auto-Dimming Interior Mirror
Cooled Seats
Dual-Zone Climate Control
Folding Rear Seat
Rear Air Conditioning
Heated Front Seats
Integrated Garage Door Opener
Leather Seats
Memory Driver's Seat
Memory Steering Wheel
Proximity Keyless Entry
Push-Button Engine Start
Wood Interior Trim

How the 2013 INFINITI G compares

The biggest change for 2013 is the new IPL G Convertible, which extends INFINITI's factory-tuned performance line to the hardtop convertible. Otherwise, this is a light late-cycle update built mainly around lineup simplification.

See the full 2013 changes

Frequently asked questions

What changed on the 2012 INFINITI G37 Sport Appearance Edition?

The 2012 G37 Sport Appearance Edition received a revised sport grille. This change applies to both the rear-wheel-drive and all-wheel-drive versions of the sedan.

Did the 2012 INFINITI G receive a new engine or transmission?

No, the 2012 INFINITI G had no lineup-wide engine or transmission change. G25 sedans retained their 2.5-liter V6, the G37 family retained its 3.7-liter V6, and the 7-speed automatic remained the main transmission. Manual transmissions were limited to Sport and IPL models.

Was the 2012 INFINITI G redesigned?

No, the 2012 INFINITI G was not redesigned. It was a late-cycle version of the fourth-generation G, with no major platform, suspension-layout or structural changes.

What distinguished the 2012 INFINITI IPL G Coupe?

The 2012 IPL G Coupe was the higher-performance version, with a 348-hp 3.7-liter V6, sport-tuned suspension, a unique body kit, leather sport seats, Bose audio and navigation. Its rear spoiler was standard for 2012 rather than optional.

Which 2012 INFINITI G sedans have all-wheel drive?

The 2012 G25x, G37x, G37x Limited Edition and G37x Sport Appearance Edition sedans have all-wheel drive. The regular G25, G37 and G37 Journey sedans use rear-wheel drive.