Infiniti’s shot at best-of-the-best sedans - Metro US

Infiniti’s shot at best-of-the-best sedans

Comprising the top-end of Nissan’s luxury brand, the last-generation Infiniti M-Series models were available to Canadian shoppers from 2006 to 2010.

Big and luxurious, the M models were Infiniti’s shot at some of the best flagship sedans from BMW, Audi and Lexus.

Look for a plethora of high-end features and world-class comfort and design.


Power came from a 3.5-litre V-6 or a 4.5-litre V-8 — hence the “35” or “45” in the vehicle’s name. Output from the V-6 was rated between 275 and 297 horsepower, while the V-8 generated between 325 and 335, depending on the year. Automatic transmissions were standard, and AWD was available.

What owners like

Owners typically rave about an exceptional interior, high comfort levels, performance, and a great-sounding engine. A high relative value factor and a long list of high-tech toys round out the positives.

What owners dislike

Owner complaints typically centre around fuel mileage, a “fussy” Bluetooth interface, road noise and a stiff ride on some models.

Common issues

Double check for proper operation of all electronic toys — including the navigation system, Bluetooth interface, stereo system and intelligent key. If a xenon headlamp is burnt out, negotiate to have it replaced before purchase, as they aren’t cheap.

Some owners have reported a “sloppy” or “imprecise” steering sensation that requires replacement of the steering rack.


No major or systematic issues related to the M’s drivetrain were apparent — and most known issues should be easy to diagnose and repair.

Consider a used M35 and M45 alongside models like the BMW 5-Series and Audi A6.

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