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2007 Infiniti M45 Test Drive

2007 Infiniti M45 Offers Grace, Style and Power

by Jessica Howell

Slipping behind the wheel of Infiniti’s sleek M45, one can’t help but feel a slight urge to let loose with “Take a look at this, Jonses!” abandon. Surprisingly unpretentious on the outside, the brand’s top-of-the-line sedan is pleasantly luxe upon inspection, proving an ideal accolade for the driveways of suburbia.

2007 Infiniti M45

We tested the V8-powered machine while cruising Michigan’s highways, acceleration sweetly smooth, coupled with an exceptionally comfortable ride. If first impressions are lasting, Infiniti’s M45 has definite staying power.

Eye the exterior and one will see a simply sculpted body, taut lines giving way to soft, smooth curves. The front end is capped with Infiniti’s signature chrome slim line and badge grille, flanked by halogen headlights. LED taillights and slight chrome accenting decorates the rear.

Like the phrase that Henry Wadsworth Longfellow gave birth to—“In character, in manner, in style, in all things, the supreme excellence is simplicity”—Infiniti’s M45 delivers grace, elegance and uncomplicated beauty on roads often cluttered with an array of over zealous exterior accenting. We appreciate this car's clean and fluid fashion.

Inside, the same grace flows, blended with ultra-luxe touches like supple leather and genuine aluminum trim. The driver’s cockpit, comfortable and convenient, features 10-way seat adjustments, backlit gauge cluster, easy-to-reach NAV and Bose audio system. Before you take off, program your phone to sync with the car’s hands-free Bluetooth system, a must-have for commuters.

Also on deck is Infiniti’s Intelligent Key—push-button start—as well as a RearView monitor for back-up safety.

Driving the M45 is no less pleasant than admiring it sans motion. Powered by a 3.5L V6 with 275 hp or the titanium-valved 4.5L V8 boasting 325 hp, the vehicle scoots. (We tested the V8, which was quick in response, embodying what we’ve dubbed “sophisticated fun.”) Harnessing engine power is a 5-speed auto transmission with manual shift mode for sporty driving.

Another notable feature on the M45 is Infiniti’s Lane Departure System, available in the Advanced Technology Package to keep you extra cautious on the roads. Turn it on and you’ll hear a soft beeping whenever the vehicle touches or crosses lane markers. Definitely a perk in heavy rains or poor visibility conditions.

We’ll admit that a week behind this wheel was not enough. In fact, it just left us wanting more. What we can assure you from our time inside this sedan, however, is that whatever your destination, Infiniti can take you there in style, comfort and class with M45.

ROAD & TRAVEL's Test Vehicle Stats

2007 Infiniti M45
Four-door sport sedan
Engine size:

4.5L DOHC V8


5-speed automatic with Manual Shift Mode

Fuel Economy:

17/23 mpg (city/highway)


*Including Advanced Technology Package ($2,500), Aerodynamic Body Kit ($1,590), Technology Package ($2,950) and Destination Charge ($650).