Introduction
The Infiniti M56 remains a standout in the luxury sedan segment, blending powerful performance, elegant design, and advanced technology seamlessly. As a key model in Nissan’s luxury lineup, the M56 offers a compelling combination of comfort, sportiness, and cutting-edge features tailored for discerning drivers.
Produced from 2011 to 2013 before evolving into the Infiniti Q70, the M56 showcased a strong V8 engine, spacious and premium interior, and innovative technology that set it apart from its competitors.
In this detailed overview, we explore the Infiniti M56’s design, performance specifications, features, and ownership experience to provide potential buyers valuable insights for their decision-making process.
| Category | Details |
| Model Years | 2011–2013 |
| Body Style | Mid-size luxury sedan |
| Platform | Nissan FM platform |
| Available Trims | Base, M56x (AWD), M56S (Sport) |
| Engine | 5.6L DOHC V8 (VK56VD) |
| Horsepower | 420 hp @ 6,000 rpm |
| Torque | 417 lb-ft @ 4,400 rpm |
| Transmission | 7-speed automatic with Downshift Rev Matching |
| 0–60 mph Time | ~4.8 seconds |
| Drive Options | Rear-wheel drive standard; all-wheel drive optional (M56x) |
| Exterior Design | Bold double-arch grille, LED taillights, sculpted body lines, dual exhaust system |
| Interior Materials | Premium leather, real wood/aluminum trim, soft-touch surfaces |
| Cabin Features | Heated/ventilated seats, dual-zone climate control, spacious rear legroom |
| Cargo Space | 14.9 cu ft trunk |
| Infotainment System | 8” touchscreen, navigation, 16-speaker Bose® system, HDD music storage |
| Connectivity | Bluetooth hands-free and audio, USB ports, voice commands |
| Safety Features | Blind Spot Warning, Lane Departure Prevention, Forward Collision Warning, Around View Monitor |
| Driver Aids | Intelligent Cruise Control, Intelligent Brake Assist |
| Fuel Economy (RWD) | 16 MPG city / 25 MPG highway |
Introduction to the Infiniti M56
The Infiniti M56, manufactured between 2011 and 2013, reflects Infiniti’s dedication to luxury and dynamic performance. As a full-size luxury sedan, it competes directly with high-end rivals by offering a distinctive mix of powerful engines, sumptuous interiors, and top-tier technology.
Exterior Styling
Sporting a sleek, modern design, the Infiniti M56 exhibits a bold and aggressive exterior. Its signature double-arch grille combined with sharp, angular LED headlights imparts a commanding road presence. Aerodynamic sculpted body lines not only enhance aesthetics but also optimize fuel efficiency and driving dynamics.
The M56 is offered in a range of sophisticated colors—from classic blacks and whites to eye-catching metallics. The optional sport package adds dynamic flair with larger alloy wheels and a sport-tuned suspension system, lending the sedan an athletic edge.
Interior Comfort and Quality
Inside the M56, luxury abounds with high-grade materials such as supple leather upholstery and real wood and aluminum accents. The cabin boasts expansive legroom and headroom in both front and rear seats, emphasizing passenger comfort for daily commutes or long-distance journeys.
Front seats are ergonomically designed, offering multiple power adjustments along with heating and ventilation options to enhance comfort. Rear passengers benefit from spacious seating and premium amenities, making the M56 ideal for transporting family or colleagues in style.
Technology Integration
The Infiniti InTouch infotainment system is the centerpiece of the M56’s technology suite, featuring an intuitive dual touchscreen interface. This system seamlessly integrates navigation, audio, and vehicle settings, enhanced by voice recognition for safer and easier operation on the road.
Engine Specs
Performance Overview
At its heart, the Infiniti M56 boasts a 5.6-liter DOHC V8 engine equipped with Variable Valve Event and Lift (VVEL) for enhanced responsiveness and efficiency. Delivering an impressive 420 horsepower and 417 lb-ft of torque, the M56 achieves brisk acceleration, reportedly reaching 0 to 60 mph in approximately 4.8 seconds.
Transmission and Drivetrain
The sedan is equipped with a 7-speed automatic transmission featuring Downshift Rev Matching, ensuring smooth gear changes and sporty driving feel. Buyers can select between rear-wheel drive (standard) or Infiniti’s advanced all-wheel drive system (M56x), optimizing traction and control in diverse driving conditions.
Fuel Efficiency
Despite its powerful V8 engine, the Infiniti M56 maintains reasonable fuel economy for its class, with EPA estimates of 16 mpg city and 25 mpg highway for rear-wheel-drive models. While not the most fuel-efficient vehicle in its segment, the balance of performance and efficiency remains well-regarded.
Features
Standard Features
The Infiniti M56 comes generously equipped, offering luxury and comfort features as standard, including:
- Leather Upholstery: Premium leather seats designed for comfort and longevity.
- Dual-Zone Climate Control: Independent temperature settings for driver and front passenger.
- Navigation System: A user-friendly navigation system with real-time traffic information.
- Power-Adjustable Front Seats: Multiple position adjustments to tailor seating comfort.
Optional Features
For enhanced customization, the M56 offers a range of optional packages and features, such as:
- Premium Bose Sound System: High-fidelity audio experience for music enthusiasts.
- Advanced Safety Technologies: Includes lane departure warning, forward collision warning, and adaptive cruise control for enhanced driver assistance.
- Sport Package: Upgrades the vehicle with sport-tuned suspension and larger alloy wheels for improved handling and visual appeal.
Driving Dynamics
The Infiniti M56 offers a refined driving experience that balances comfort with sportiness. Its suspension system is finely tuned to absorb road imperfections while maintaining agile handling characteristics. Steering feedback is precise and responsive, providing confidence whether navigating urban streets or winding roads.
Optional all-wheel drive enhances traction and stability in wet or slippery conditions, broadening the car’s usability across seasons and environments.
Maintenance and Reliability
As with many luxury vehicles, maintenance costs for the Infiniti M56 can be above average. Regular scheduled servicing is vital to preserving optimal performance and longevity. Infiniti supports owners with comprehensive maintenance programs, which may provide cost savings during early ownership periods.
Overall, the M56 is considered to have solid reliability ratings, though repair and parts costs tend to be higher than mainstream sedans. Many owners appreciate the trade-off for the vehicle’s high quality and driving enjoyment.
Resale Value
The Infiniti M56 holds a competitive resale value within the luxury sedan market. Like most luxury cars, depreciation can be faster than average, but maintaining thorough service records and ensuring proper upkeep can help maximize resale potential.
Community and Support
Owning an Infiniti M56 connects you to an active community of luxury sedan enthusiasts. Infiniti regularly hosts owner events and maintains online forums dedicated to sharing knowledge, maintenance tips, and customization ideas, enriching the ownership experience.
Competitors
Below is a comparison table highlighting key competitors in the luxury mid-size sedan category alongside the Infiniti M56, providing context around engine options, power output, fuel efficiency, and starting price points (2024 updated estimates):
| Competitor | Engine Specs | Horsepower | Fuel Economy (City/Highway) | Starting Price (USD) |
| BMW 5 Series | 2.0L Turbo I4 / 3.0L Turbo I6 / 4.4L V8 | 248–600 hp | 21/32 mpg | $59,000 |
| Audi A6 | 2.0L Turbo I4 / 3.0L V6 | 248–335 hp | 24/31 mpg | $57,000 |
| Mercedes-Benz E-Class | 2.0L I4 / 3.0L V6 / 4.0L V8 | 255–603 hp | 23/31 mpg | $57,500 |
| Lexus GS 350 | 3.5L V6 | 311 hp | 22/32 mpg | $53,500 |
Conclusion
The Infiniti M56 remains a distinguished choice in the luxury sedan class. Offering a robust V8 engine, refined aesthetics, advanced infotainment, and comprehensive driver assistance features, it is a compelling option for enthusiasts prioritizing performance and comfort. Though maintenance costs may be higher than average, the overall quality and engaging driving dynamics provide exceptional value for the luxury car buyer.
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Whether your priority is exhilarating power, elegant amenities, or modern technology, the Infiniti M56 blends these attributes effectively, making it a worthy consideration in today’s luxury sedan market.
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FAQs
The M56 includes the Infiniti InTouch dual touchscreen system, premium Bose® audio, Bluetooth connectivity, navigation with real-time traffic updates, and advanced safety technologies such as adaptive cruise control and lane departure warning.
Exterior highlights include a distinctive double-arch grille, LED headlights and taillights, and sculpted body lines. Inside, the cabin features premium leather upholstery, real wood trim, spacious seating, and high-quality soft-touch materials.
The M56 delivers an EPA-estimated 16 mpg in city driving and 25 mpg on the highway, which is reasonable for a powerful luxury V8 sedan.
The M56 is powered by a 5.6-liter V8 engine producing 420 horsepower and 417 lb-ft of torque, enabling a 0-60 mph acceleration time of approximately 4.8 seconds.
The Infiniti M56 comes standard with rear-wheel drive, with the option to upgrade to an advanced all-wheel drive system (M56x) for improved traction and handling in diverse conditions.
The M56 offers a strong V8 powertrain and luxurious features comparable with rivals like the BMW 5 Series, Audi A6, Mercedes-Benz E-Class, and Lexus GS 350. It tends to emphasize performance and comfort, with competitive technology and design features.
