2011 BMW
550i
vs. 2012 Infiniti
M56

2012 Infiniti M56

9.9

Winner

Infiniti M56

starting from

$59,975
"High-quality interior materials."
edmunds.com | talking about the M's interior quality
"None of the coarse, trucklike noises exhibited."
edmunds.com | talking about the M's noise

Reasons to buy the Infiniti M56

Badge
Safer for the driver in head-on collisions
5 stars
Badge
Longer basic warranty
60,000 mile
Badge
Has a semi-automatic transmission
Badge
Has a subwoofer
2011 BMW 550i

9.7

Runner-up

BMW 550i

starting from

$61,075
"The 5′s interior was about as you’d expect from a BMW – meaning not one material was short of top notch and each seat was a pleasant place in which to spend some time."
leftlanenews.com | talking about the 5 Series's interior quality
"Undeniably modern, it nonetheless took us back to the E39-era 5-Series (think 1996 through 2003), a crisp but sleek interpretation of a four-door BMW."
leftlanenews.com | talking about the 5 Series's external styling

Reasons to buy the BMW 550i

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Turbocharged engine improves performance
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Less chance of rolling over during emergency lane change
5 stars
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Rear air conditioning
Optional
Badge
Safer for the driver in side collisions
5 stars
Entertainment System 10.0 vs 8.9
2012 Infiniti M56 Winner: M56
[details]
  • The M56's subwoofer accurately reproduces deep bass notes in music
  • The M56's stereo compensates for road noise as you speed up
  • Have your pick of music from around the world with the M56's satellite radio; in the 550i, too, but it'll cost
Crash Test Ratings 9.6 vs 10.0
2011 BMW 550i Winner: 550i
[details]
  • The 550i has 1.5x less risk of rolling over, 5 stars vs 4 stars
  • The 550i has 1.5x less risk of serious injury, 5 stars vs 4 stars
Cost 10.0 vs 9.7
2012 Infiniti M56 Winner: M56
[details]
  • Basic warranty lasts 10,000 more miles, 60,000 mile vs 50,000 mile
  • Gets around 10% more miles per gallon in the city, 16 mpg vs 15 mpg
Safety Features 10.0 vs 10.0
Too close to call
[details]
  • Child door locks come standard
Luxury Features 10.0 vs 10.0
Too close to call
[details]
  • Both come standard with sun roofs
  • Both come standard with leather interiors
  • Both have power seats
Practicality - vs -
Missing information
[details]
  • Both come standard with navigation systems
Performance 10.0 vs -
Missing information
[details]
  • Very powerful
  • Both provide sporty handling
Road Tests - vs 10.0
Missing information
[details]
  • The 550i's 1/4 mile time is blazingly fast, and the M56 is pretty good, too
  • Both vehicles have good 0-60 times
  • Both vehicles have above average braking abilities for this class of vehicle
Overall 9.9 vs 9.7

Entertainment System

Infiniti
M56
2012 Infiniti M56
2011 BMW 550i BMW
550i
Help
Number of speakers 10 vs 12 Both have more speakers, but the 550i in particular has a large number
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Has speed sensitive volume Yes vs No The M56's stereo cranks the volume to compensate for road noise, but the 550i does not
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CD player Standard vs Standard CD player comes standard
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premium radio Standard vs Optional Have your pick of music from around the world with the M56's satellite radio; in the 550i, too, but it'll cost
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Has auxiliary audio input Yes vs Yes Both have an audio-in jack so you can plug in your own MP3 player to the stereo
Help
Has subwoofer Yes vs No The M56 has a subwoofer to accurately produce deep bass frequencies in music
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entertainment system Not Available vs Optional It'll cost you to get an entertainment system on the 550i; but it's not available at all on the M56

Crash Test Ratings

Infiniti
M56
2012 Infiniti M56
2011 BMW 550i BMW
550i
Help
Rollover resistance 4 stars vs 5 stars The 550i is exceptionally safe; 1.5x safer than the M56
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Front driver crash test 5 stars vs 4 stars The better is 2.1x safer than the 550i
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Driver side crash test 4 stars vs 5 stars The better is 1.5x safer than the M56

Cost

Infiniti
M56
2012 Infiniti M56
2011 BMW 550i BMW
550i
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MSRP $59,975 vs $61,075 Very expensive
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In-city gas mileage 16 mpg vs 15 mpg Very inefficient in the city
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basic warranty miles 60,000 mile vs 50,000 mile Both have long-lasting basic warranties, but M56 in particular is extraordinary
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basic warranty years 4 year vs 4 year Longer-lasting basic warranty

Safety Features

Infiniti
M56
2012 Infiniti M56
2011 BMW 550i BMW
550i
Help
antilock brakes Standard vs Standard Both come standard with ABS brakes
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Stability control system Yes vs Yes Both have electronic stability control
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Airbags 5 vs 5 OK number of airbags
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Rear brakes Disc vs Disc Both have the usual brakes for this class of vehicle
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child door locks Standard vs Standard Child door locks come standard
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Roadside assistance system None vs BMW Assist

Luxury Features

Infiniti
M56
2012 Infiniti M56
2011 BMW 550i BMW
550i
Help
moon roof Standard vs Standard Both come standard with sun roofs
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power seats Standard vs Standard Both have power seats
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keyless entry Standard vs Standard Both have keyless entry
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leather Standard vs Standard Both come standard with leather interiors

Practicality

Infiniti
M56
2012 Infiniti M56
2011 BMW 550i BMW
550i
Help
Passengers 5 vs 5 Average number of seats
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Highway driving range Unknown vs 407 miles
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Cargo space 14.9 ft3 vs Unknown
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front seats 58.7 ft3 vs Unknown
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folding rear seats Not Available vs Optional The 550i offers an optional folding rear seat for extra cargo room; not available on the M56
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power outlets Standard vs Standard Both have power outlets
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roof rails Not Available vs Not Available Neither offers roof rails
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navigation system Standard vs Standard Both come standard with navigation systems
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Cupholders 4 vs 4 OK number of cupholders
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front air conditioning Standard vs Standard A/C for hot summer days comes standard

Performance

Infiniti
M56
2012 Infiniti M56
2011 BMW 550i BMW
550i
Help
Horsepower 420 HP @ 6,000 RPM vs 400 HP @ 5,500 RPM Very powerful
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Number of gears 7 vs 6 The M56 has more gears and the 550i is OK, too
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Transmission Semi-automatic transmission vs Manual transmission Both the M56's semi-automatic transmission and the 550i's Manual transmission are unusual transmissions for this class of vehicle
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paddle shifters Not Available vs Not Available Neither offers paddle shifters
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Air compressor None vs Twin turbocharger The 550i's Twin turbocharger lets it maximize power output, quite rare for this class of vehicle
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Power-to-weight ratio 9.6 lb/hp vs 10.9 lb/hp Both provide sporty handling
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Drivetrain type rear-wheel drive vs rear-wheel drive Both have the usual drivetrain for this class of vehicle
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Curb-to-curb turning radius 36.7 ft vs Unknown

Road Tests

Infiniti
M56
2012 Infiniti M56
2011 BMW 550i BMW
550i
Help
0-60 mph 4.8 seconds vs 4.8 seconds Both vehicles have good 0-60 times
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Braking distance at 60mph 116 ft vs 116 ft Both vehicles have above average braking abilities for this class of vehicle
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1/4 mile 13.8 s @ 102 mph vs 13.3 s @ 106 mph The 550i's 1/4 mile time is blazingly fast, and the M56 is pretty good, too
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Lateral acceleration 0.86 g vs 0.86 g Both have unremarkable cornering abilities
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Top speed Unknown vs 155 mph

Other Vehicles to Consider

2011 BMW 550i 2012 BMW 750i 550i vs 750i
2011 BMW 550i 2011 Mercedes-Benz E550 550i vs E550
2011 BMW 550i 2011 Audi A5 Premium 550i vs A5 Premium
2011 BMW 550i 2012 Audi A7 Premium 550i vs A7 Premium
2011 BMW 550i 2011 Mercedes-Benz C63 AMG 550i vs C63 AMG
2012 Infiniti M56 2011 Infiniti G37 Sport M56 vs G37 Sport
2012 Infiniti M56 2011 Nissan Maxima SV M56 vs Maxima SV
2012 Infiniti M56 2011 Porsche Panamera 4S M56 vs Panamera 4S
2012 Infiniti M56 2012 Acura TL M56 vs TL
2012 Infiniti M56 2011 Toyota Avalon Limited M56 vs Avalon Limited

Comments Which car would you recommend, and why?

Showing 1 comments

Adfdaf (10:26 AM, May 06, 2012)
The infiniti has an option for a 10 speaker and 16 speaker system.