Infiniti M

Name: 2003 Infiniti M
Brand: Infiniti

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.

First 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

See All Ratings & Specs

2003 Sedans & Hatchbacks Reliability

No Data Available

Crash and Rollover 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 and Rollover 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

Infiniti vs. Other New Car Brands

See How All Brands Stack up

Owner Reports

Worse Better

Owner Satisfaction 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

Driving Experience

Comfort

Value

Infiniti vs. Other New Car Brands

See How All Brands Stack up

Infiniti vs. Other New Car Brands

See How All Brands Stack up

Crash and Rollover 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

CR MPG:

Road test

Reliability

Owner Satisfaction

2003 Acura RL

$3,950 - $4,000

CR MPG:

Road test

Reliability

Owner Satisfaction

2003 Acura TL

$3,575 - $4,225

CR MPG:

Road test

Reliability

Owner Satisfaction

2003 Audi A6

$3,125 - $4,250

CR MPG:

Road test

Reliability

Owner Satisfaction

2003 BMW 5 Series

$3,975 - $5,100

CR MPG:

Road test

Reliability

Owner Satisfaction

2003 Cadillac CTS

$3,175

CR MPG:

Road test

Reliability

Owner Satisfaction

2003 Jaguar S-Type

$3,425 - $4,700

CR MPG:

Road test

Reliability

Owner Satisfaction

2003 Lexus ES

$4,775

CR MPG:

Road test

Reliability

Owner Satisfaction

2003 Lexus GS

$5,125 - $5,200

CR MPG:

Road test

Reliability

Owner Satisfaction

2003 Lincoln LS

$3,250 - $3,600

CR MPG:

Road test

Reliability

Owner Satisfaction

2003 Mercedes-Benz E-Class

$3,975 - $8,200

CR MPG:

Road test

Reliability

Owner Satisfaction

2003 Volvo S80

$3,175 - $4,375

CR MPG:

Road test

Reliability

Owner Satisfaction

See All Luxury midsized cars Ratings

Seating

2 front, 3 rear

Drive Wheels

Rear

Warranty

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

sedan

5-speed Automatic

4.5-liter V8 (340 hp)

Model History

2011-

Current Generation

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.