The 2011 Infiniti M56 emerged as a beacon of inspired automotive engineering, representing the zenith of INFINITI’s design and performance philosophy at the time. Drawing inspiration from the dramatic INFINITI Essence Concept, this halo sedan was meticulously crafted to embody the core tenets of the INFINITI brand: captivating style, exhilarating performance, opulent luxury, meticulous craftsmanship, and cutting-edge technology. The 2011 M56 wasn’t just an evolution; it was a statement, building upon the strengths of its predecessors while forging its own path in the competitive luxury sedan segment.
Ben Poore, then vice president of the INFINITI Business Unit, aptly summarized the ethos behind the 2011 Infiniti M, stating, “The 2011 INFINITI M embodies all of our best thinking, design and quality to date. It builds on the strengths of the previous generation, delivering a performance luxury experience crafted to a higher standard.” This vision translated into a vehicle that not only met but exceeded expectations, particularly with the introduction of the potent 2011 Infiniti M56.
Power and Performance Redefined in the 2011 M56
At the heart of the 2011 Infiniti M56 lay a newly engineered 5.6-liter V8 engine, a powerhouse designed to deliver both commanding performance and enhanced efficiency. This marked a significant leap from the previous generation M45, boasting a substantial increase in horsepower and improved fuel economy. The 2011 Infiniti M56 engine churned out an impressive 420 horsepower, a remarkable 95 horsepower surge compared to the M45’s 4.5-liter V8. Torque also saw a significant uplift, reaching 417 lb-ft, an 81 lb-ft increase, translating to robust acceleration and effortless cruising capabilities.
This formidable 5.6-liter V8 engine in the 2011 Infiniti M56 incorporated INFINITI’s advanced VVEL (Variable Valve Event & Lift) system. VVEL technology optimizes engine breathing by continuously adjusting valve lift and timing, resulting in enhanced throttle response, increased power output, and improved fuel efficiency. Furthermore, the 2011 M56 engine utilized Direct Injection Gasoline (DIG™) technology. DIG™ injects fuel directly into the combustion chamber, allowing for more precise fuel delivery, contributing to increased power, improved fuel economy, and reduced emissions.
Mated to this powerful engine was a standard 7-speed automatic transmission. This advanced transmission offered a wide ratio spread, contributing to both brisk acceleration and relaxed highway cruising. Drivers of the 2011 Infiniti M56 could also engage a manual shift mode, complete with Downshift Rev Matching, for a more engaging and sporty driving experience.
The 2011 Infiniti M56 was available in both rear-wheel drive and INFINITI’s Intelligent All-Wheel Drive system. The all-wheel-drive variant, the M56x, provided enhanced traction and stability, particularly in adverse weather conditions, making the 2011 M56x a capable and confident performer year-round.
For enthusiasts seeking an even more dynamic driving experience, the Sport Package, available on rear-wheel drive 2011 Infiniti M56 models, elevated the sedan’s performance credentials. This package included 4-wheel Active Steer (4WAS), sport-tuned suspension, Sport Brakes, and striking 20-inch wheels and tires. The 4WAS system enhanced agility at lower speeds and stability at higher speeds, while the sport-tuned suspension and brakes sharpened handling and braking performance of the 2011 M56 Sport.
Technological Innovation in the 2011 Infiniti M56
The 2011 Infiniti M56 was not just about raw power; it was a showcase of advanced, user-centric technologies designed to enhance the driving experience. INFINITI loaded the 2011 M56 with a suite of innovations, carrying forward the technological legacy of the M series.
One notable feature was the INFINITI Drive Mode Selector. This system allowed drivers of the 2011 M56 to choose from four distinct driving modes – Standard, Eco, Sport, and Snow – tailoring the vehicle’s throttle and transmission mapping to suit different driving conditions or preferences. In Sport mode, the 2011 M56 became even more responsive, while Eco mode optimized fuel efficiency.
The 2011 Infiniti M56 also incorporated Active Noise Control, a sophisticated system that minimized unwanted engine noise in the cabin. By generating “canceling” sound waves, this technology created a quieter and more refined interior environment, enhancing passenger comfort in the 2011 M56.
Safety was paramount, and the 2011 Infiniti M56 featured Blind Spot Warning (BSW) and Blind Spot Intervention™ (BSI). BSW alerted the driver to vehicles in blind spots, while BSI, a world-first system, went a step further by selectively applying braking to help guide the 2011 M56 back into its lane if an unintended drift towards a blind spot was detected.
Further enhancing the in-cabin experience, the 2011 Infiniti M56 offered the Forest Air™ system. This system aimed to create a more pleasant and natural atmosphere inside the vehicle by reducing unpleasant odors and providing a breeze-like airflow. Eco Pedal provided haptic feedback to encourage more fuel-efficient driving habits in the 2011 M56. Active Trace Control subtly adjusted engine torque and braking to enhance cornering performance, making the 2011 M56 feel more agile and responsive in turns.
Double-piston Shock Absorbers in the 2011 Infiniti M56 dynamically adjusted damping force based on road surface input, striking a balance between ride comfort and handling prowess. The Enhanced Intelligent Key system in the 2011 M56 went beyond basic key functions, remembering personalized audio, navigation, and climate control settings for each driver, in addition to seat, steering wheel, and mirror positions.
The 2011 Infiniti M56 also offered a next-generation INFINITI Hard Drive Navigation System, a premium Bose® Studio Surround® audio system, Intelligent Cruise Control (Full-Speed Range), Lane Departure Warning (LDW) and Lane Departure Prevention (LDP) systems, Distance Control Assist (DCA), Intelligent Brake Assist (IBA) with Forward Collision Warning (FCW), and Front Pre-Crash Seat Belts, solidifying its position as a technology-rich luxury sedan.
Striking Design and Luxurious Interior of the 2011 M56
The exterior design of the 2011 Infiniti M56 was a study in dynamic elegance. Building upon the established rear-wheel drive proportions of the M series, the 2011 M56 presented a longer, lower, and wider stance, exuding a sense of refined athleticism. The wheelbase remained at 114.2 inches, but the increased width and length, combined with a slightly lowered height, contributed to a more assertive and contemporary profile. The wider track, especially on rear-wheel drive models like the 2011 M56, further enhanced its planted and confident appearance.
The bodywork of the 2011 Infiniti M56 was characterized by deep contours and sculpted lines, creating a play of light and shadow that emphasized its muscular fenders and doors. The distinctive wave-style doors, crafted from lightweight aluminum, showcased INFINITI’s commitment to both design innovation and weight reduction. The iconic INFINITI double-arch grille and crystal-look headlight clusters were prominent design elements, while the wave-like trunk lid subtly incorporated aerodynamic functionality. Models equipped with the Sport Package, including the 2011 M56 Sport, featured unique front fascia, dark finish grille, dark headlight housings, and 20-inch wheels, further amplifying their sporty character.
Aerodynamic efficiency was meticulously considered in the design of the 2011 Infiniti M56. Underbody enhancements, such as tire deflectors, undercovers, and diffusers, contributed to a low coefficient of drag of just 0.27 and zero lift front and rear, improving fuel economy and high-speed stability.
Standard exterior features of the 2011 Infiniti M56 included a power sliding tinted glass moonroof, automatic HID Xenon headlights, dual exhaust with polished tips, power-folding heated outside mirrors, rain-sensing wipers, and courtesy lamps in the door handles. Available Adaptive Front lighting System (AFS) further enhanced nighttime visibility.
Inside the 2011 Infiniti M56, the focus shifted to creating a driver-centric and passenger-pampering environment. INFINITI’s design philosophy prioritized the individual experience, resulting in a meticulously crafted interior that blended comfort, technology, and artistry seamlessly. The cockpit of the 2011 M56 was designed to feel like a natural extension of the driver, with carefully considered ergonomics and premium materials throughout.
The instrument panel of the 2011 Infiniti M56 featured Fine Vision electroluminescent gauges, a 7.0-inch color vehicle information display, and an INFINITI analog clock, combining modern technology with classic elegance. Leather-appointed, heated 10-way power front seats with lumbar support were standard, along with a dual occupant memory system linked to the Intelligent Keys. Each Intelligent Key also remembered last-used climate control, audio, and navigation settings, providing a truly personalized experience in the 2011 M56.
Premium materials and meticulous craftsmanship were evident throughout the 2011 Infiniti M56 interior. Available handcrafted wood accents and custom leather appointments elevated the sense of luxury. The Deluxe Touring Package further enhanced the interior with semi-aniline leather, quilted seat patterns, suede-like headliner, and genuine White Ash wood trim with real silver powder, creating an exceptionally refined and inviting cabin in the 2011 M56.
The available Bose® Studio Surround® sound system with up to 16 speakers, including personal speakers in the front seats, delivered an immersive audio experience in the 2011 Infiniti M56. The Forest Air™ system, part of the Deluxe Touring Package, further enhanced the cabin environment with its air purification and breeze simulation features.
Dynamic Driving Experience of the 2011 M56
INFINITI engineers aimed to deliver a naturally dynamic and engaging driving experience in the 2011 Infiniti M56. The powerful VVEL-equipped 5.6-liter V8 engine was tuned to provide a smooth and responsive power delivery, building like a “rising wave.” The VVEL system played a key role in enhancing throttle response and overall engine performance of the 2011 M56.
The 7-speed automatic transmission with Adaptive Shift Control (ASC) and Downshift Rev Matching contributed to both smooth everyday driving and spirited performance. The available solid magnesium paddle shifters on Sport Package models of the 2011 M56 provided a more direct and engaging manual shifting experience.
The 2011 Infiniti M56 utilized the advanced FM (Front Mid-ship) platform, which positioned the engine behind the front axle, optimizing weight distribution for improved handling balance. Enhanced body rigidity, through increased welding and laser welding in critical areas, further contributed to the 2011 M56’s solid and composed feel.
The suspension system, featuring independent double-wishbone front and multi-link rear designs, provided a refined balance of ride comfort and handling agility. The Sport Package’s sport-tuned suspension with double-piston shock absorbers sharpened handling response without sacrificing ride quality in the 2011 M56 Sport. The available 4-Wheel Active Steer (4WAS) system further enhanced agility and stability, particularly in Sport Package equipped 2011 M56 models.
INFINITI’s Vehicle Dynamic Control (VDC) with Traction Control System (TCS) was standard on all 2011 Infiniti M56 models, providing an added layer of safety and stability by automatically adjusting brake pressure and engine torque to help maintain vehicle control in challenging situations. The Active Trace Control system, included with the Technology Package, subtly enhanced cornering feel by applying braking to optimize weight transfer and modulating engine torque.
For enhanced all-weather capability, the 2011 Infiniti M56x featured INFINITI Intelligent All-Wheel Drive. This system dynamically distributed torque between the front and rear wheels, optimizing traction and stability in varying road conditions.
Advanced Safety and Security in the 2011 Infiniti M56
The 2011 Infiniti M56 was equipped with a comprehensive suite of advanced safety and security systems. Lane Departure Warning (LDW) and Lane Departure Prevention (LDP) systems helped to prevent unintended lane departures. Blind Spot Warning (BSW) and the pioneering Blind Spot Intervention™ (BSI) system enhanced driver awareness and intervention capabilities in blind spot situations.
Intelligent Brake Assist (IBA) with Forward Collision Warning (FCW) and Front Pre-Crash Seat Belts further bolstered the 2011 Infiniti M56’s safety credentials. A comprehensive airbag system, including dual-stage front airbags, front seat-mounted side-impact airbags, and roof-mounted curtain side-impact airbags, provided occupant protection in the event of a collision. Standard 3-point seat belts, front seatbelt pretensioners, and Active Head Restraints further contributed to occupant safety in the 2011 M56.
Conclusion: The Inspired Luxury of the 2011 Infiniti M56
The 2011 Infiniti M56 stood as a testament to INFINITI’s commitment to inspired design, exhilarating performance, and luxurious refinement. With its potent 5.6-liter V8 engine, advanced technologies, striking design, and meticulously crafted interior, the 2011 Infiniti M56 delivered a compelling and rewarding ownership experience. Whether prioritizing exhilarating performance or sophisticated luxury, the 2011 Infiniti M56 catered to discerning drivers seeking a truly exceptional performance sedan. It solidified its place as a hallmark of INFINITI’s pursuit of automotive excellence and continues to be remembered as a high point in the brand’s history.
