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2011 INFINITI M56 consumer reviews

$58,450 starting MSRP
side view of 2011 M56 INFINITI
(9 reviews)
88% of drivers recommend this car
Rating breakdown (out of 5):
  • Comfort 4.4
  • Interior 4.9
  • Performance 4.7
  • Value 4.4
  • Exterior 4.6
  • Reliability 4.3
Explore the 2011 INFINITI M56

Incredible power and performance. Fun to drive.

This car delivers in so many ways. Great looks, power, interior layout is tastefully done. Gas mileage is not good but that doesn't take away from this incredible car.

Rating breakdown (out of 5):
  • Comfort 4.0
  • Interior 5.0
  • Performance 5.0
  • Value 5.0
  • Exterior 4.0
  • Reliability 4.0
  • Purchased a Used car
  • Used for Having fun
  • Does recommend this car
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Powerful reliable car.

Wish it came standard with the adaptive cruise control like my 2007 M45 had, and the lane detection. On the S model it should be standard to have those features. When you go from a M45 to a M56S you gain power and styling but the interior is not as friendly (button(s) location) and driver passenger seats could have been made a bit more comfortable for long drives. Love the power but the fuel mileage drop starts to be annoying when the average MPG is showing 14.8.

Rating breakdown (out of 5):
  • Comfort 4.0
  • Interior 4.0
  • Performance 5.0
  • Value 4.0
  • Exterior 4.0
  • Reliability 4.0
  • Purchased a Used car
  • Used for Commuting
  • Does recommend this car
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nissan performance and reliability,for the world..

was a bit hesitant at first cuz i never owned an AWD before.but decided to go see it in person took her for a spin approx 1 km,and was sold,own it now for 10 mths 14,000 kms no regrets.

Rating breakdown (out of 5):
  • Comfort 4.0
  • Interior 5.0
  • Performance 5.0
  • Value 5.0
  • Exterior 5.0
  • Reliability 5.0
  • Purchased a Used car
  • Used for Commuting
  • Does recommend this car
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Unpredictable Powertrain

These cars are very comfortable and satisfying in every way except for the power train. My car drove differently every time I drove it. Sometimes it would lag, other times it would break your neck. The transmission always seemed to shift differently than I intended it to. The power band was very irregular and constantly changing; I think this occurs because of the variable valve timing being not well controlled. These cars also have direct injection and have no way of either capturing oil droplets in the pcv system or of cleaning oil droplets/deposits from the intake valves. After having the dealer attempt an induction cleaning service I had no noticeable improvement. I later took intake manifold off to inspect the valves and they were covered with heavy deposits at only 20k miles on the engine. This did not improve performance. My car always ran pretty rich going by the sooty tailpipes that I could not seem to remedy. I took the car to two different Infiniti dealers for drive ability problems and never was able to obtain a solution. There were never any codes so the dealers said the car was fine. After owning the car for a year and a half I cut my losses and traded it in on a new vehicle with a less complicated power train. I did not buy another Infiniti. Before this car I was a loyal five time Nissan/Infiniti owner.

Rating breakdown (out of 5):
  • Comfort 5.0
  • Interior 5.0
  • Performance 2.0
  • Value 3.0
  • Exterior 5.0
  • Reliability 2.0
  • Purchased a Used car
  • Used for Commuting
  • Does not recommend this car
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Acceleration Machine

Perfect blend of sports and luxury. Hit the accelerator at 70 and feel your neck jerk. Bells and whistles galore.

Rating breakdown (out of 5):
  • Comfort 4.0
  • Interior 5.0
  • Performance 5.0
  • Value 5.0
  • Exterior 5.0
  • Reliability 5.0
  • Purchased a Used car
  • Used for Commuting
  • Does recommend this car
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Can't wait to get mine!

For the past 15 years I have drove nothing but Infiniti. I currently have my '93 J30 (Classic) and my '03 M45 (Classic too) and I can't see driving anything else. Over the years both cars have been extremely reliable and always ahead of the curve in not only look but technology too. I can't wait to get my M56 in white. I always do white!

Rating breakdown (out of 5):
  • Comfort 5.0
  • Interior 5.0
  • Performance 5.0
  • Value 5.0
  • Exterior 5.0
  • Reliability 5.0
  • Purchased a Used car
  • Does recommend this car
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Run ... don't walk, to buy this car

This car is an outstanding value. When I compared it to the BMW 550 x drive, the Mercedes 550 AWD, and the Aud A6 4.2 Quattro ... it won out hands down. The standard options and the updated interior make it a real winner. This car responds when you press the gas pedal and you can improve your gas mileage by selecting the "econo" mode when you don't need all 425 horses. This is a very high quality automobile and the price makes it hard to pass up.

Rating breakdown (out of 5):
  • Comfort 5.0
  • Interior 5.0
  • Performance 5.0
  • Value 5.0
  • Exterior 4.0
  • Reliability 5.0
  • Purchased a Used car
  • Does recommend this car
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The M56 is the best Infiniti to date !

This is my fourth Infiniti, including a J and 2 Qs and this is by far the best of the lot by a long way. Unlike the Qs which had big engines but not much low end get up and go this car is very quick, has lots of torque and gets extraordinary road mileage. It has great ergonomics and it is much more comfortable for long trips than I would have expected. I recommend it for folks that want a big car on the inside with a roomy trunk but don't like driving a outwardly large gas hog.

Rating breakdown (out of 5):
  • Comfort 5.0
  • Interior 5.0
  • Performance 5.0
  • Value 4.0
  • Exterior 4.0
  • Reliability 5.0
  • Purchased a New car
  • Does recommend this car
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M56S owner

Overall very happy with the car. Fun to drive, it really is like a 4 door sports car. I have driven it 2,500 miles at this point. The only problem to date is that the battery failed ( not died ). Dealer and the roadside assistance program was excellent however. I also have a QX56 2007 with 41000 miles which I bought from the same dealership. Very happy with that also.

Rating breakdown (out of 5):
  • Comfort 4.0
  • Interior 5.0
  • Performance 5.0
  • Value 4.0
  • Exterior 5.0
  • Reliability 4.0
  • Purchased a New car
  • Does recommend this car
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