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

Last updated August 4, 2026

The most important change for the 2009 INFINITI M is a stronger 303-horsepower V6, paired with a new 7-speed automatic in the rear-wheel-drive M35. This is a mechanical and equipment update, not a redesign.

0 in stock at Carvana

About the 2009 INFINITI M

2nd generation (2006-2010), fourth year of the generation and the year after the 2008 styling/technology freshening.

The 2009 M is INFINITI’s midsize luxury sport sedan: a roomy four-door built to blend strong acceleration, rear-drive balance or AWD traction, and a cabin with a lot of comfort and tech for the class. INFINITI marketed it as a premium performance sedan with a clear sporty edge, aiming at shoppers who wanted BMW-like response without giving up everyday comfort and a generous standard feature set.

The 2009 range consists of the rear-wheel-drive M35 and M45 plus the all-wheel-drive M35x and M45x. The M35 models use a 303-horsepower V6, while the M45 models have a 325-horsepower V8; leather upholstery, heated and cooled front seats, adaptive xenon headlights, a moonroof, and Bluetooth give the lineup a well-equipped luxury focus.

What changed, by category

Powertrain

V6 models receive a 303-horsepower 3.5-liter engine. The rear-wheel-drive M35 also gains a 7-speed automatic, while every trim adds a sportier Drive Sport shift mode.

Styling

Scratch Shield self-healing clearcoat paint is added across the lineup to help repair fine surface scratches.

Safety

Speed-sensing automatic door locks are added across the lineup.

Tech

The all-wheel-drive M35x gains standard xenon headlights that turn with the steering to help illuminate curves.

2009 INFINITI M specs and features by trim

Feature	2009 INFINITI MM350 in stock	2009 INFINITI MM450 in stock	2009 INFINITI MM35x0 in stock	2009 INFINITI MM45x0 in stock
Engine	V6, 3.5 Liter	V8, 4.5 Liter	V6, 3.5 Liter	V8, 4.5 Liter
Transmission	Automatic, 7-Spd w/Overdrive & Manual Mode	Automatic, 5-Spd w/Overdrive & Manual Mode	Automatic, 5-Spd w/Overdrive & Manual Mode	Automatic, 5-Spd w/Overdrive & Manual Mode
Drivetrain	RWD	RWD	AWD	AWD
Fuel Type	Gas	Gas	Gas	Gas
MPG City	17 mpg	16 mpg	16 mpg	14 mpg
MPG Highway	25 mpg	21 mpg	22 mpg	20 mpg
Horsepower	303 hp	325 hp	303 hp	325 hp
Torque	262 lb-ft	336 lb-ft	262 lb-ft	336 lb-ft
Trunk/Cargo	14.9 cu-ft	14.9 cu-ft	14.9 cu-ft	14.9 cu-ft
Rear Legroom	37.3 in	37.3 in	37.3 in	37.3 in
Seats	5	5	5	5
Doors	4	4	4	4
Safety & Security
Adaptive Cruise Control
Alarm System
Lane Departure Warning
Rear View Camera
Exterior Features
Alloy Wheels
Fog Lights
Power Moonroof
Rear Spoiler
Entertainment & Electronics
Bluetooth
Navigation System
Premium Audio
Rear DVD Entertainment System
Satellite Radio
Comfort & Convenience
Aluminum Interior Trim
Cooled Seats
Dual-Zone Climate Control
Heated Front Seats
Leather Seats
Proximity Keyless Entry

How the 2010 INFINITI M compares

The 2010 INFINITI M carries over with no major product changes. Its main significance is that it was the final year of this body style before the fully redesigned 2011 M arrived.

See the full 2010 changes

Frequently asked questions

What is the biggest change to the 2009 INFINITI M compared with the 2008 model?

The biggest change is the updated 303-horsepower 3.5-liter V6 in the M35 and M35x. The rear-wheel-drive M35 also moves to a 7-speed automatic, while the body and cabin design largely carry over from 2008.

Is the 2009 INFINITI M a redesign?

No. The 2009 INFINITI M is a mechanical and equipment update within the same generation, following the larger styling and technology freshening for 2008.

Do all 2009 INFINITI M models have the 7-speed automatic?

No. Only the rear-wheel-drive M35 has the 7-speed automatic. The M35x, M45, and M45x use a 5-speed automatic, and every version has Drive Sport shift mode.

Which 2009 INFINITI M trims have all-wheel drive?

The M35x and M45x have all-wheel drive. The M35x pairs it with the 303-horsepower V6, while the M45x combines it with the 325-horsepower V8.

What equipment was added across the 2009 INFINITI M lineup?

Every 2009 INFINITI M adds Drive Sport shift mode, speed-sensing automatic door locks, and Scratch Shield self-healing clearcoat paint. The M35x also gains standard xenon headlights that turn with the steering.