Infiniti M

Name: 2003 Infiniti M
Brand: Infiniti

EPA MPG: NA

RECALL ALERT: There are 2 recalls on this vehicle. Learn More.

There are 2 recalls on this vehicle. Learn More.

RECALL ALERT: There are 2 recalls on this vehicle. Learn More.

There are 2 recalls on this vehicle. Learn More.

CR's Take

The new M45 occupies a price-and-size niche between the midsized G35 and large Q45. It's a conservatively styled sedan that competes with the Lexus GS, Acura RL, and Lincoln LS. It shares many of the Q45's components but starts in the low $40s. Highlights include a gutsy 340-hp V8 that powers the rear wheels through a five-speed automatic transmission. Luxury appointments and high-tech features abound. It shares the Q45's adaptive cruise control, a laser-based system that maintains a set distance to the car ahead. Climate, audio, and other functions can be controlled by voice command. Although a long car, the interior is notably tight.

Reliability Details

Owner Satisfaction Details

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2003 Sedans & Hatchbacks Reliability

No Data Available

Crash Tests

IIHS Front Moderate Overlap

IIHS Front Small Overlap, Driver

IIHS Side Crash

NHTSA Overall Crash

NHTSA Overall Frontal-Crash

NHTSA Overall Side-Crash

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Owner Reports

Owner Satisfaction

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

Driving Experience

Comfort

Value

Crash Tests

IIHS Front Moderate Overlap

IIHS Front Small Overlap, Driver

IIHS Side Crash

NHTSA Overall Crash

NHTSA Overall Frontal-Crash

NHTSA Overall Side-Crash

See All Ratings & Specs

Crash Tests

IIHS Front Moderate Overlap

IIHS Front Small Overlap, Driver

IIHS Side Crash

NHTSA Overall Crash

NHTSA Overall Frontal-Crash

NHTSA Overall Side-Crash

See All Ratings & Specs

2003 Luxury midsized cars Ratings

2003 Infiniti M

$3,975

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2003 Acura RL

$3,950 - $4,000

EPA MPG 20 mpg

Road test

Reliability

Owner Satisfaction

2003 Acura TL

$3,575 - $4,225

EPA MPG 22 mpg

Road test

Reliability

Owner Satisfaction

2003 Audi A6

$3,125 - $3,925

EPA MPG 20 mpg

Road test

Reliability

Owner Satisfaction

2003 BMW 5 Series

$3,975 - $5,100

EPA MPG 21 mpg

Road test

Reliability

Owner Satisfaction

2003 Cadillac CTS

$3,050

EPA MPG 21 mpg

Road test

Reliability

Owner Satisfaction

2003 Jaguar S-Type

$3,100 - $4,700

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2003 Jaguar X-Type

$3,075 - $3,575

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2003 Lexus ES

$4,775

EPA MPG 24 mpg

Road test

Reliability

Owner Satisfaction

2003 Lexus GS

$5,125 - $5,200

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2003 Lincoln LS

$3,250 - $3,600

EPA MPG 22 mpg

Road test

Reliability

Owner Satisfaction

2003 Mercedes-Benz E-Class

$3,725 - $8,200

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2003 Volvo S80

$3,175 - $4,375

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2003 Volvo V70/XC70

$ NA

EPA MPG NA

Road test

Reliability

Owner Satisfaction

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Features & Specs

sedan

2 front, 3 rear

Rear

4.5-liter V8 (340 hp)

5-speed automatic

In most cases, automotive warranties are based on the vehicle identification number (VIN), and the warranty will be valid regardless of ownership. The dealership can tell you exactly how much warranty is left.

Read more about extended warranties

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Model History

2011-2013

2011 Redesign Year

Quick, quiet, and roomy, the 2011 redesign also performed well. A not-so-impressive rear-drive hybrid version was also introduced. The optional Technology Package adds a variety of safety aids. These include lane keep assist, which can also prevent changing lanes into an unseen car. The active cruise control function has autonomous braking, as well as a forward-collision warning system. Model year 2014 brought a name change to Q70. Styling was facelifted for 2015, which also marked the introduction of a long-wheelbase Q70L model.

2006-2010

2006 Redesign Year

The 2006 redesign of Infiniti's largest four-door car transformed it into a capable luxury/sports sedan with a comfortable interior, a choice of V6 or V8 power, and optional all-wheel drive. Ride and handling are good. The M series Infinitis are exceptionally capable, whether cruising on the highway, or hustling along twisty country roads. Further, their interiors are plush and well constructed. This version of the Infiniti was also one of the first cars to offer a lane-departure warning system.

2003-2005

2003 Redesign Year

The rear-wheel-drive Infiniti M sedans occupied a price-and-size gap between the G35 and the large, now-discontinued Q45. Ranked among our top sedans, the original M45 was a conservatively styled package with a gutsy V8 engine, but a cramped interior.