INFINITI M56x Review

Published on 2/20/2025

The INFINITI M56x is a luxury sedan that offers a blend of performance, comfort, and cutting-edge technology. Positioned as a premium vehicle, it competes with other high-end sedans in the market, providing a powerful V8 engine and advanced all-wheel-drive system. It appeals to those looking for a refined driving experience combined with the reliability and luxury synonymous with the INFINITI brand.

History and Background

The INFINITI M56x is part of the INFINITI M series, which has been a staple in the luxury sedan market since its inception. The M series was introduced to offer a combination of performance, comfort, and technological innovation, and the M56x represents the pinnacle of this philosophy with its powerful engine and all-wheel-drive capability.

The M56x was launched in the 2011 model year, providing an upgrade from its predecessors through a more potent engine and refined styling. The vehicle has undergone several updates to keep pace with the evolving luxury car market, maintaining its position as a strong contender in its class.

Key Dates:

  • 2011: Introduction of the M56x model
  • 2012: Technology package update
  • 2013: Minor facelift and interior enhancements

Performance and Handling

VariantEnginePower0-60Top SpeedFuel Economy
M56x5.6L V8420hp4.8s155 mph16/23 mpg

Interior and Comfort

FeatureBaseMidTop
Leather Upholstery
Navigation System
Premium Audio-
Adaptive Cruise-

Technology and Features

Technology by Model Year:

  • 2011: Introduction of the INFINITI Drive Mode Selector
  • 2012: Enhanced navigation and touchscreen interface

Infotainment System:

  • Screen size: 8-inch touchscreen
  • Features: Navigation, Bluetooth connectivity, voice recognition
  • Connectivity: USB, Bluetooth, AUX input

Driver Assistance Features:

  • Standard: Rearview camera, parking sensors, blind-spot monitoring
  • Optional: Lane departure warning, adaptive cruise control, collision warning

Safety

The INFINITI M56x has performed well in crash tests, receiving high marks for its robust safety features and structural integrity. The vehicle comes standard with a suite of airbags and advanced driver assistance systems that enhance occupant protection.

Safety Ratings:

  • NHTSA Rating: 5 stars
  • IIHS Rating: Good

Safety Features:

  • Standard: Front and rear curtain airbags, traction control, stability control
  • Optional: Forward collision warning, lane departure prevention

Value for Money

YearConditionPrice Range
2011Excellent$15,000-$20,000
2012Good$13,000-$18,000
2013Fair$10,000-$15,000

Running Costs:

The INFINITI M56x is designed to be relatively affordable to maintain compared to its competitors, with reasonable fuel economy for a V8 and a reputation for reliability.

  • Fuel Economy: 16 city / 23 highway / 19 combined
  • Service Intervals:
    • Oil Change: 7,500 miles
    • Major Service: 30,000 miles
  • Common Repair Costs:
    • Brake Pads: $300-$500
    • Suspension Components: $400-$800

Known Issues by Year:

  • 2011: Infotainment system glitches
  • 2012: Minor electrical issues

Competitor Comparison

Competitor 1: BMW 5 Series

  • Market Position: The BMW 5 Series is seen as a benchmark in the midsize luxury sedan segment, known for its dynamic driving experience.
  • Features Comparison: The 5 Series offers a broader range of customizations and advanced technology features.
  • Price Comparison: Generally priced higher than the M56x, reflecting its brand prestige.
  • Running Costs: Maintenance can be more costly due to expensive parts and service.

Competitor 2: Mercedes-Benz E-Class

  • Market Position: Known for its luxurious interior and smooth ride, the E-Class is a strong contender in the luxury sedan market.
  • Features Comparison: Offers more standard features but at a higher entry price.
  • Price Comparison: Typically more expensive than the M56x, especially at higher trim levels.
  • Running Costs: Higher maintenance costs, with premium parts and service.

Competitor 3: Audi A6

  • Market Position: The Audi A6 is celebrated for its technology-forward approach and refined design.
  • Features Comparison: Offers cutting-edge technology and interior quality comparable to the M56x.
  • Price Comparison: Similar pricing to the M56x, but with more emphasis on technology.
  • Running Costs: Comparable running costs, with high-tech components potentially increasing repair expenses.

Verdict

The INFINITI M56x is a compelling choice for those seeking a luxury sedan that offers a perfect balance of performance, comfort, and technology. While it may not have the immediate brand recognition of some European rivals, it holds its own with a powerful V8 engine, advanced all-wheel-drive system, and a well-appointed interior. Its competitive pricing and lower running costs make it an attractive option for discerning buyers looking for value without compromising on quality.