Advertisement

Why ads?
Popular at KBB.com
  • 10 Best Luxury Cars Under $40,000
  • 2014 Small Luxury Sedan Buyer's Guide
  • Class of 2015: New Vehicles Ready to Roll
  • 10 Best Midsize SUVs
Go

2008 Infiniti M

Overview
Share this page
Trading in or Selling? Know where you stand with the most up-to-date Kelley Blue Book Value at your fingertips. See your car's value

Buying this car?

2008 Infiniti M Review

By

The Infiniti M sedan line distinctively blends sport, luxury and performance characteristics with V6 or V8 power. For 2008, a comprehensive restyle, multiple interior tweaks and new tech features give this premium sedan family even greater market appeal. And, for the first time, there's a choice of rear-drive (M35 or M45) or all-wheel-drive (M35x or M45x), and the availability of Lane Departure Prevention (LDP). Rated by the EPA as a full-size sedan, with interior space that nearly matches an Audi A8, BMW 7 Series and Mercedes S-Class, the Infiniti M is priced closer to the smaller Audi A6, BMW 5 Series and Mercedes-Benz E-Class counterparts -- along with key Japanese mid-size rivals like the Acura RL and Lexus GS. The Infiniti M's high-value and high-content formula is further reinforced by excellent reliability and strong customer satisfaction ratings.

You'll Like This Car If...

If you're in the market for a sport sedan with plenty of room, spirited performance and loads of comfort and convenience touches, any member of the Infiniti M lineup is worth a test drive. Those with distinct enthusiast leanings should find the V8-powered M45 with a Sport Package particularly attractive.

You May Not Like This Car If...

Even in this latest incarnation, the Infiniti M's styling cues remain somewhat understated, perhaps too much so for buyers with more flamboyant tastes. If you're one of the vanishing breed who still believes that any proper sport sedan simply must have a manual transmission, an M35 or M45 in any guise just won't fill your bill.

What's New for 2008

The Infiniti M enjoys an exterior facelift and multiple lesser interior enhancements while gaining a new, all-wheel drive M45x variant. The 2008 lineup also sees Lane Departure Prevention technology added to the existing Lane Departure Warning system and M Sport models replaced by an available Sport Package for rear-drive versions of both M35 and M45.

Driving the M

Driving Impressions Although the specific driving characteristics of each model vary by engine and powertrain configuration, all variations on the M theme come standard with a genuinely engaging personality and offer an...

impressive combination of comfort and control that should please a wide range of potential buyers. Based on the latest version of Nissan's lauded FM (Front Mid-ship) platform, also used in the 350Z and Infiniti G35 and G37, the M matches its nicely-sorted fully-independent suspension with well-weighted and quick-responding power steering. Those commendable dynamic qualities get ratcheted up a tangible notch on rear-drive models fitted with the optional Sport Package. Although the heavier all-wheel-drive M35x and M45x models sacrifice a bit of enthusiast appeal, Nissan's outstanding AWD system can seamlessly transfer torque from front-to-rear and side-to-side as changing traction conditions warrant, making it a feature well worth considering for those who live outside of the Sun Belt.

Bi-xenon Adaptive Front lighting System (AFS)
Optional on the M35x but standard on all other M models, these high-intensity headlamps are linked to the steering system and can angle their brilliant blue-white beams into a corner to provide an even better look at what lies ahead.

Optional Rear Active Steer (RAS)
Included in the Sport Package, Rear Active Steer varies the geometry of the rear wheels in response to both road speed and driver steering inputs to deliver even more immediate and positive reactions during spirited cornering.

2008 Infiniti M Details
Interior

The spacious Infiniti M cabin has a contemporary classic flavor highlighted by supple leather upholstery with African rosewood or textured-aluminum accents. Restyled main gauges reflect the latest Infiniti white-and-purple lighting motif for even greater legibility, and supplemental functions can be accessed by logically arrayed switchgear on the instrument panel's center stack -- or by a user-friendly controller that displays information on a 7.0-inch color LCD screen. Both front seats feature 10-way power adjustability, the fixed-back, contoured rear bench provides generous head and legroom for adults in the two outboard spots while a pull-down center armrest conceals a modest pass-though opening to the M's 14.9 cubic-foot trunk.

Exterior

A subtle but wide-ranging exterior revamp adds a bit bolder character to the 2008 M lineup. Its crisply rendered nose gains an edgier grille, new fog lamps and reshaped lower air inlets. Out back, an even more comprehensive makeover brings redrawn fenders and a higher-profile decklid plus more elegantly shaped and better-integrated taillamps that complement an even-tidier fascia. Both M35 and M45 models come with 18-inch aluminum wheels mounted with V-rated 245/45 all-season tires, but stepping up to the Sport Package upgrades that to 245/40R19 high-performance tires on unique alloy rims and includes more aggressive front and rear soft-trim contours, integrated side sills and charcoal-colored headlamp bezels.

Notable Equipment
Standard Equipment

Both the M35 and M45 have all of the luxury appointments you'd expect in a premium sedan-and more. Complementing leather and wood and aluminum trim are a bounty of power assists plus dual-zone climate control, 160-watt AM/FM/CD/MP3 audio with six-disc changer, Intelligent Key remote locking and ignition, one-touch power moonroof and a power tilt and telescoping steering column capped by a four-spoke wheel with switches to operate the audio, cruise control, phone and vehicle information functions. All versions come with Vehicle Dynamic Control (VDC), anti-lock brakes (ABS), Brake Assist (BA), Electronic Brake force Distribution (EBD), corner-following bi-xenon adaptive headlamps (optional on the M35x) and front, front-side and side-curtain airbags.

Optional Equipment

Tiered option groups allow personalization of any M model with the best of everything available from Infiniti. The three key packages, in ascending order, are Technology, Advanced Technology and Premium. Included in those packages are voice-recognition DVD-based navigation, a RearView backup monitor, Intelligent Cruise Control, Preview Braking, Lane Departure Warning, Lane Departure Prevention, two levels of Bose premium audio systems, a 9.3-gigabyte Music Box hard drive, single or dual-screen rear-seat DVD video systems, heated and power-reclining rear seats and rear air conditioning. Enthusiasts can opt for the Sport Package, which includes a tauter suspension with Rear Active Steer, plus 19-inch wheels and tires, sport seats and unique body trim.

Under the Hood

Smooth and sophisticated, the M35's 3.5-liter V6 and the M45's 4.5-liter V8 are enthusiastic, albeit somewhat thirsty, powerplants. Made of lightweight aluminum and featuring variable valve timing to maximize operating efficiency, both are backed by a responsive five-speed automatic transmission with intuitive electronic controls that adapt to a driver's individual style, plus a neat throttle-blipping feature that matches engine rpm to vehicle speed for even smoother downshifts. With 275 horsepower and 268 pound-feet of torque, the V6 propels an M35 from zero to 60 miles per hour in just over six seconds - or slightly more for the heavier all-wheel-drive M35x. Rated at 325 horsepower and 336 pound-feet of torque, the larger V8 in the M45 drops that interval into the mid-to-high five-second range.

3.5-liter V6
275 horsepower @ 6200 rpm
268 lb.-ft. of torque @ 4800 rpm
EPA city/highway fuel economy: 16/23 (RWD), 16/22 (AWD)

4.5-liter V8
325 horsepower @ 6400 rpm
336 lb.-ft. of torque @ 4000 rpm
EPA city/highway fuel economy: 16/21 (RWD), 14/20 (AWD)

Trading in or Selling? Know where you stand with the most up-to-date Kelley Blue Book Value at your fingertips. See your car's value

Buying this car?

2008 Infiniti M Consumer Reviews

Overall Rating
9.5
Out of 10

Based on 266 Ratings for the 2006 - 2010 models.

Review this car
  • Value
    9.4/10
    Quality
    9.6/10
  • Reliability
    9.6/10
    Performance
    9.5/10
  • Comfort
    9.6/10
    Styling
    9.5/10

Excellent Excellent Excellent, However a GasGuzzle

By on Sunday, June 15, 2014

I own this car - My approximate mileage is 94,000

10 9.0
overall rating 9 of 10rating details

Reviewer Ratings

Overall Rating
9/10
Value
10/10
Reliability
10/10
Quality
10/10
Performance
10/10
Styling
10/10
Comfort
10/10

Pros: "Performance and Luxury"

Cons: "Gas Guzzler"

Likely to recommend this car? (1-10): 10

"This is a great vehicle. I truly love driving it and it offer you both worlds-Sport & Luxury. If you like to drive and you like speed and performance, this car will give it to you. However, it is very hard on gas (guzzler). The Infini M35X is SWEET!"

5 people out of 6 found this review helpful

A very sporty and reliable car as a luxury sedan

By on Saturday, March 29, 2014

I own this car - My approximate mileage is 152,000

10 9.0
overall rating 9 of 10rating details

Reviewer Ratings

Overall Rating
9/10
Value
8/10
Reliability
9/10
Quality
9/10
Performance
7/10
Styling
10/10
Comfort
10/10

Likely to recommend this car? (1-10): 10

"I really like the handling and road manners of this sedan. The performance and power is right up there with BMW and Mercedes. I was on the highway trailing a porches panamera kept up in visual sight at speed excess 90+.T he steering was responsive and felt really good I used premium gas runs exceptional"

5 people out of 6 found this review helpful

What a great car

By on Tuesday, March 11, 2014

I own this car - My approximate mileage is 220,000

10 9.0
overall rating 9 of 10rating details

Reviewer Ratings

Overall Rating
9/10
Value
10/10
Reliability
10/10
Quality
10/10
Performance
10/10
Styling
10/10
Comfort
9/10

Pros: "Won't be dissappointed"

Cons: "No auto lock of doors when put into drive"

Likely to recommend this car? (1-10): 10

"Bought this car new. I Put in about 130 miles a day driving to and from work all highway. This car has been VERY reliable and what a great ride. Yes people thought I was crazy to spend so much on a car that was going to get so much mileage, but this car has not just been dependable, it continues to be a joy to drive, plus still looks great most people would think that it was newer than an 06"

2 people out of 2 found this review helpful

I love driving this car! 8 1/2 years and counting

By on Tuesday, February 04, 2014

I own this car - My approximate mileage is 159,750

10 10.0
overall rating 10 of 10rating details

Reviewer Ratings

Overall Rating
10/10
Value
10/10
Reliability
10/10
Quality
9/10
Performance
10/10
Styling
10/10
Comfort
9/10

Pros: "Fun to drive. Handles great. Reliable"

Cons: "Not extremely quiet engine."

Likely to recommend this car? (1-10): 10

"This car has been my favorite car. I love driving it thus have not considered getting a new one. Will drive it til it dies.. It's been reliable, with no problems. It looks modern and people can't believe it's that old. I am beginning to think of getting a new car and it's going to be hard not to replace it with another Infiniti."

2 people out of 2 found this review helpful

You get what you pay for

By on Monday, January 27, 2014

I own this car - My approximate mileage is 155,000

10 9.0
overall rating 9 of 10rating details

Reviewer Ratings

Overall Rating
9/10
Value
9/10
Reliability
9/10
Quality
9/10
Performance
10/10
Styling
10/10
Comfort
9/10

Pros: "joy to drive"

Cons: "gas mileage"

Likely to recommend this car? (1-10): 10

"Bought this car with 32,000 miles, now have 155,000 miles. Great car to drive. Very reliable. Definitely has some get up and go. All wheel drive keeps the car on the right track during incliment weather."

3 people out of 3 found this review helpful

Great Car

By on Tuesday, December 24, 2013

I own this car - My approximate mileage is 73,274

10 9.0
overall rating 9 of 10rating details

Reviewer Ratings

Overall Rating
9/10
Value
8/10
Reliability
10/10
Quality
9/10
Performance
9/10
Styling
10/10
Comfort
9/10

Pros: "internal/external style, acceleration, quality"

Cons: "road noise, one switch becomes dislodged"

Likely to recommend this car? (1-10): 9

"I purchased this car used about two years ago. The only problem that I have seen is one of the seat heater switches becomes dislodged on occasion and has to be re-seated. It is a comfortable ride and accelerates well, feels great accelerating through corners. I expected the road noise to be a little better so I will see if I can improve that with the next set of tires. I did not know much about Infiniti prior to this car catching my eye. I will be seriously considering Infiniti models in the future."

2 people out of 2 found this review helpful

Share this page

Advertisement

Why ads?
Trading in or Selling? Know where you stand with the most up-to-date Kelley Blue Book Value at your fingertips. See your car's value

Buying this car?

See if you qualify for
up
to
Cash Back
on a new
Details