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    2011-2013

    2011 Model Redesign Year
    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.
    2013 Infiniti M
    Retail Price
    $6,150 - $9,900
    EPA MPG
    21 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    2012 Infiniti M
    Retail Price
    $5,500 - $8,350
    EPA MPG
    21 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    2011 Infiniti M
    Retail Price
    $6,000 - $6,675
    EPA MPG
    21 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 

    2006-2010

    2006 Model 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.
    2010 Infiniti M
    Retail Price
    $5,725 - $6,050
    EPA MPG
    21 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    2009 Infiniti M
    Retail Price
    $5,475 - $5,725
    EPA MPG
    21 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    2008 Infiniti M
    Retail Price
    $5,125 - $5,550
    EPA MPG
    21 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    2007 Infiniti M
    Retail Price
    $4,750 - $5,850
    EPA MPG
    21 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    2006 Infiniti M
    Retail Price
    $4,550 - $5,375
    EPA MPG
    20 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    / 5

    2003-2005

    2003 Model 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.
    2005 Infiniti M
    Retail Price
    NA
    EPA MPG
    NA
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    2004 Infiniti M
    Retail Price
    $4,750
    EPA MPG
    NA
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    2003 Infiniti M
    Retail Price
    $3,975
    EPA MPG
    NA
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
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    Precision testing comes standard at our 327-acre auto test center.

    TESTING LIKE NOBODY ELSE

    50+

    tests are conducted on every car we buy.

    PERFORMANCE TESTING

    6

    miles of track for testing acceleration, ride, handling, braking, and advanced driver assist systems.

    TIRE TESTING

    400

    tires tested a year for all-weather grip and rolling resistance.