2007 INFINITI M45 Review
2007 INFINITI M45 Review
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Edmunds' Expert Review
by the Edmunds Experts
Pros
- Explosive power from a smooth V8, roomy cabin, sharp steering, responsive handling, long list of luxury features.
Cons
- Some mediocre interior trim, center stack controls can be a challenge to decipher.
What’s new
Following last year's redesign, the Infiniti M45 gets only minor tweaks for 2007. A 10-way power-adjustable passenger seat has been added to the standard features list, along with a compass and a HomeLink remote transmitter. The car's Technology and Journey packages have been revised, and a new Advanced Package has been added. New SAE engine rating procedures have also resulted in lower power figures for the V8, but actual performance is unaffected.
Edmunds says
Though the 2007 Infiniti M45 doesn't quite match the competition in terms of luxury and refinement, it's a winning choice for those whose priorities are oriented toward performance.
Cost to DriveCost to drive estimates for the 2007 INFINITI M45 4dr Sedan (4.5L 8cyl 5A) and comparison vehicles are based on 15,000 miles per year (with a mix of 55% city and 45% highway driving) and energy estimates of $4.45 per gallon for premium unleaded in Ohio.
Monthly estimates based on costs in Ohio
$305/mo for M45 Base
M45 Base
vs
$181/mo
Avg. Midsize Car
Vehicle overview
Everyone likes to witness a good metamorphosis. They impart a spirit of hope and leave us with the sense that anything is possible. As far as automotive metamorphoses go, few have been more dramatic than that exhibited by the Infiniti M45. The car began life as a wallflower; it offered lots of value for the money but was short on sex appeal and outgunned by the competition in terms of style, features and interior room. Infiniti brought the car in for some much-needed revisions, and in model-year 2006, the M made like a butterfly and spread its wings as two dazzling, all-new sedans -- the M35 and M45.
With its sculpted lines, the 2007 Infiniti M45 boasts all the requisite aesthetic upgrades that come with any good redesign, but its makeover is about more than mere appearances. The car has been endowed with a more spacious cabin, one that offers more front head- and legroom than others in its class. The M45's interior design cues are a bit busy when compared to those of competitors like the elegantly understated Lexus GS 430. But overall, the car's cabin is well-built and attractive, and we have no doubt that most folks will be more than satisfied with what it has to offer.
Without a doubt, the M45's most appealing feature is its sporty persona. The muscle-bound 4.5-liter V8 is good for 325 horsepower and 336 pound-feet of torque, and is as solid an engine as you'll find in this segment. Power delivery is explosive, low-end torque is abundant and it's smooth enough to feel at home in a sedan with a six-figure price tag. The suspension is pleasingly firm and the car feels balanced when driven aggressively. The steering is also impressively quick on the Sport model, as it comes with an active rear-steering system.
Relative to the competition, the M45 trails when it comes to refinement. Those seeking a choice with maximum polish will be happiest with a car like the Acura RL, Lexus GS 430 or Mercedes-Benz E550. But the 2007 Infiniti M45 takes top honors for being the true driver's car of its class. If you're an enthusiast, you'll find this Infiniti's bravado downright irresistible.
Performance & mpg
The rear-wheel-drive M45 is motivated by a brawny 4.5-liter V8 that's capable of 325 hp and 336 lb-ft of torque. A five-speed automatic with automanual capability and downshift rev-matching is standard. An M45 that we tested hit 60 in 5.7 seconds and completed the quarter-mile in 14.4 seconds.
Safety
The M45's suite of safety features includes ABS, stability control, front active head restraints, front seat side- and full-length side-curtain airbags. An available lane-departure warning system alerts the driver of unintended lane drifting. In IIHS crash tests, the 2007 Infiniti M45 scored a "Good" rating the highest possible in both frontal and side impact protection.
Driving
The V8 engine in the 2007 Infiniti M45 provides gobs of low-end torque and smoothness. Power delivery, either out on the highway or off the line, is outstanding. Braking performance is impressive, and a firmly tuned suspension provides excellent balance in the corners. The trade-off is that the car, especially in Sport trim, can feel a bit raw around town as the suspension can be unforgiving over large road irregularities.
Interior
The M45's interior is sportier than that of others in its class, with firm, heavily bolstered seats, a can't-miss-it tachometer and real aluminum (in the Sport model) trim. The car's décor isn't as streamlined and eye-pleasing as that of rivals, however. Gauges are lit in a less-than-ambient orange and the center stack controls are a bit busy. Additionally, the Infiniti name and logo are embroidered on the seats, a touch many on our staff found a bit over the top. All in all, though, the M45's cabin is pleasant and well put together, and we have no doubt that most will be more than happy to spend time in it.
2007 INFINITI M45 models
The 2007 Infiniti M45 comes in two flavors: base and Sport. Standard on the base trim are 18-inch alloy wheels, a 10-way power-adjustable driver seat, Rosewood trim, leather upholstery, one-touch up-and-down power windows, dual-zone automatic climate control, an auto-dimming rearview mirror, heated outside mirrors and a 160-watt, six-speaker sound system with a six-CD changer with MP3 playback capability. The Sport trim substitutes aluminum accents for the wood ones and adds 19-inch alloys, a sport-tuned suspension, an active rear-steer system and adaptive HID headlamps.
Available packages add a navigation system, voice-recognition technology, a center-console-mounted DVD player and adaptive cruise control. (This system senses vehicles ahead and adjusts your speed to maintain a selected following distance.) Among the other extras are a lane-departure warning system and a 14-speaker Bose surround-sound audio system.
Consumer reviews
Read what other owners think about the Used 2007 INFINITI M45.
5 star(85%)
4 star(15%)
3 star(0%)
2 star(0%)
1 star(0%)
34 reviews
Trending topics in reviews
Most helpful consumer reviews
4.88 out of 5 stars
Outstanding to Own!!
Wendell, 11/06/2006
2007 INFINITI M45 Sport 4dr Sedan (4.5L 8cyl 5A)
Leased this car about 3 weeks ago. Have been following this model since the redesign in 2006. When my 2003 Volvo S80 lease was about to end, I saw an special on the website. I went in to the local dealer and they were able to set me up. although I went in to get an M35, I ended up deciding on the M45 Sport. The 8 cylinder is only 1 mile per gallon different in the MPG. The power of the … 4.5L is quiet but very muscular. The interior comforts are great and the overall appearance of the car bring many compliments. Got a 21 month lease on the car at about $100.00 per month more than I was paying for my S80. love driving this machine....
5 out of 5 stars
Best car I've ever owned
mike8231985, 04/19/2012
2007 INFINITI M45 4dr Sedan (4.5L 8cyl 5A)
I had a Mercedes E-class prior to this and was ready for something more sporty. I'm in my 20s, and I think the E-Class is geared towards older people who just want comfort. The M45 is for people who like to drive hard and get thrills from speed and performance. I never thought a sedan would be as much fun/more fun as my BMW 330ci. Reliability is amazing and part of the reason I decided … against buying another German car. The Infiniti fits my personality a lot better than the stuffy E-class.
4.88 out of 5 stars
M45 Sport
desertfox, 10/20/2009
2007 INFINITI M45 Sport 4dr Sedan (4.5L 8cyl 5A)
Purchased this car used w/27,000 miles on it. CPO Infiniti. I'm a Lexus guy and still own one but this car really opened my eyes. The ride quality is great, no issues with sport suspension. Interior is quiet as any luxury car I have ever driven. This car takes no backseat to any German luxo sedan out there.
4.38 out of 5 stars
1a
mboy, 10/23/2006
2007 INFINITI M45 Sport 4dr Sedan (4.5L 8cyl 5A)
After 3500 miles the M45 has been a pure joy to drive. The rear view camera works very well as does the adaptive speed control. The lane departure function can be annoying on streets that have uneven surfaces or are a bit rough as these surfaces are picked up as lines and false readings are frequent. I am about to turn this feature off. Acceleration is more than adequate and handling is … superb. Fuel consumption is a bit disappointing at only 16 mpg combined. Overall a great car.
2007 M45 Highlights
Base
Base MSRP Excludes Destination Fee | $49,100 |
---|---|
Engine Type | Gas |
Combined MPG | 18 MPG |
Cost to Drive | $305/month |
Seating | 5 seats |
Cargo Capacity All Seats In Place | 14.9 cu.ft. |
Drivetrain | rear wheel drive |
Warranty | 4 years / 60,000 miles |
Safety
Key safety features on the M45 include:
- Alarm
- Tire Pressure Warning
- Stability Control
- Pre-collision safety system
IIHS Rating
The Insurance Institute of Highway Safety uses extensive crash tests to determine car safety.
- Small Overlap Front Driver-Side TestNot Tested
- Small Overlap Front Passenger-Side TestNot Tested
- Moderate Overlap Front Test – OriginalGood
- Moderate Overlap Front Test – UpdatedNot Tested
- Side Impact Test – OriginalGood
- Side Impact Test – UpdatedNot Tested
- Roof Strength TestNot Tested
- Rear Crash Protection / Head RestraintNot Tested
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