Overview & Reviews

The 2008 Infiniti M45 gets optional all-wheel drive and the same subsequent "x AWD" nomenclature found on the all-wheel-drive M35. Notable technological upgrades this year include a new lane departure warning system and a switch to a hard drive-based navigation system with real-time traffic and digital music storage capabilities. There's also revised interior and exterior styling. Last year's Sport trim level has been dropped but a new sport package effectively takes its place.

• Impressive V8 power, responsive handling, spacious cabin, abundant luxury features, available all-wheel drive.

• Noisy highway ride, non-intuitive center stack controls.

User Reviews:

Showing 1 through 10 of 11.00

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  Better than the E500 - 2008 Infiniti M45
  By Victor G Zilinskas - March 30 - 4:26 am

  I have the Sport model. Exciting car to drive with all the extras that a driver could desire. I dont find the control center confusing, but rather find it loaded with useful features. I push the car hard on winding roads and I find it very responsive and easy to handle. (It compares favorable to BMWs I owned in the past.) The gas mileage is not good, but that is the only disappointment (especially when premium hit $4.00 in Santa Barbara.) All together, I highly reccomend this reasonable priced luxury sport sedan.

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  I am another satisfied customer - 2008 Infiniti M45
  By alxpush - February 20 - 4:36 pm

  I am at the end of my 39 mo lease (bought 2006 model on 10/30/05), love the car from day one. Perfectly comfortable inside and outside. Excellent nav system, very useful rear view camera (day or night), especially for parking in tight places, plenty of power. Overall 9/10, only because I know, there is better cars out there which I have not tried yet.

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  I love this car! - 2008 Infiniti M45
  By sweiss114 - January 9 - 7:46 am

  When I was shopping for a new car, I checked out several in the price range of 50000-60000. The Infiniti M45x beats all in this range. The car has great power and acceleration, and a sporty stance. The exterior is not quite as aggressive as it could be, but whatever the exterior lacks, the interior quickly makes up for. The interior design, layout, and overall look is amazing! The ambient lighting is beautiful and the control console is like none other. The comfort is tremendous in this car and is spacier than almost any car in its class in this price range. Overall, it is a beautiful car and does everything that I need it to.

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  Love it and for the money.... - 2008 Infiniti M45
  By sunpower - October 8 - 2:33 pm

  I leased mine with a two year contract. At the end of the lease, I am very happy with the car. It has good acceleration, its comfortable and its stylish but not over the top. It doesnt attract too much attention but when I sit inside I feel pampered. Good features are ride and technology. Bad features are gas mileage and noise level.

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  Rear Clunk - 2008 Infiniti M45
  By M Ashley - July 11 - 9:33 pm

  Love the car but I have a clunking noise coming from the rear of the car. Infiniti knows about this & its been with the M series since 2006. They say its "unfixable". WHAT??? I am very displeased with the way Infiniti is handling this problem and plan to take it to the fullest, if it should come to that.

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  a BMW with a 50% discount - 2008 Infiniti M45
  By Ray Libaad - January 12 - 4:20 am

  I bought this after testing the 550i. outstanding performance. Handles like a sports car but rides like one (19"wheels). Interior is quiet and serene at high speeds. I find myself regularly doing 100-120mph without even feeling it. Exhaust note is sweet. The best low beam headlights in any car Ive driven (the road is evenly carpeted with bright white light) but strangely very lousy high beams. Leg room in the front and back is class leading

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  Better Than All Competitors - 2008 Infiniti M45
  By Mouseclick - October 19 - 4:30 pm

  After thoroughly reviewing several cars from BMW (3 and 5 series), Jaguar (XF), Mercedes (C class), Lexus (IS F), I settled upon the M45 sport, almost fully loaded (lacks mobile DVD system). Some of these cars are like comparing apples to oranges but, the M45 above all others is best in overall value to performance – it has the best of all worlds. It offers great performance, plenty of space, excellent design and the best technology features of anyone. While all the other cars were always sorely lacking in some features (for example, the IS F lacks space, the Jag lags in technology, etc.), the M45 simply glimmers best in everything overall, and at a respectable price comparatively.

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  Sold on Infiniti - 2008 Infiniti M45
  By 1st Infiniti - August 22 - 10:46 pm

  I purchased a 2008 M45 Sport in December. It was "used" with 3,700 miles and includes the Sport, Tech and Advanced Tech packages, which are just about everything youll need unless you are shuttling around some very special friends. (The only thing its missing is the reclining, heated rear seats... boohoo.) I looked at dozens of cars before finding this one at an incredible deal. Giving up a Porsche 911, I wanted power... check. I also wanted something luxurious... check. All without making me feel like I should be twice my age in order to drive it... thats where the Sport Pkg comes in. This car handles incredibly well for something this big and the acceleration nearly matches my 911.

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  Not as flashy but just as nice - 2008 Infiniti M45
  By MTCS - April 17 - 3:23 pm

  Traded in a 09 Maxima for the 08 Infiniti M45X. I test drove the 08 G37 and a 08 BMW 550. The G 37 actually drives better but I figured I would get the top of the line and go with the M. The car does not turn heads but as the other reviewer put it, you get pampered when you get inside. I had a Maxima prior to this so I understand all the gadgets. Everything is laid out well. It has great power, you will not get embarrassed on the acceleration lane and on a smooth road you cant tell the difference between 65 and 85. The surround sound is like a concert hall. Around town the ride is a little bouncy, you will feel most bumps in the road and the M goes through gas.

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  Best car ever owned. - 2008 Infiniti M45
  By Joe Warner - May 16 - 1:50 am

  The 2008 M45x is one of the most luxurious and best handling sedans in this category. It may not be the best in every category but the combination of luxury, performance and features is excellent.