INFINITI M: Price, Mileage, Features, Specs, Variants, Engine, Interior, History & More

Brief Introduction of INFINITI M

The INFINITI M is a series of mid-size luxury cars that holds a significant place in the history of Nissan’s premium brand. Spanning four distinct generations, the INFINITI M evolved from a sporty coupe and convertible to a sophisticated and powerful sedan designed to compete with established German luxury rivals. Initially introduced in 1990 as a two-door model, it was later resurrected as a performance-oriented sedan. Across its various iterations, the INFINITI M was known for offering a compelling blend of performance, luxury, and value. The model line featured a range of powerful V6 and V8 engines, rear-wheel and all-wheel-drive configurations, and a host of advanced technology and comfort features. In 2013, as part of a brand-wide renaming strategy, the INFINITI M was succeeded by the INFINITI Q70.

INFINITI M Overview

Generations and History of INFINITI M

First Generation (1990-1992)

The first generation of the INFINITI M was introduced in 1989 for the 1990 model year as the M30. It was available as a two-door coupe and, from 1991, a convertible. The M30 was based on the Japanese-market Nissan Leopard and was powered by a 3.0-liter VG30E V6 engine producing 162 horsepower, paired with a 4-speed automatic transmission. Standard features were generous for the time and included a driver’s airbag, anti-lock brakes, leather upholstery, a Bose sound system, and automatic climate control. The convertible models were converted in the U.S. by the American Sunroof Corporation (ASC). The M30 was positioned as a lower-priced alternative to the flagship Q45 and competed with the Acura Legend coupe. However, its styling and performance were considered somewhat dated by some critics, and it did not achieve significant sales success.

Second Generation (2003-2004)

After a decade-long hiatus, the INFINITI M returned for the 2003 model year as the M45 sedan. This generation was a rebadged version of the Japanese-market Nissan Gloria. It featured a much more aggressive and muscular design than its predecessor and was positioned as a performance luxury sedan. The sole powertrain was a potent 4.5-liter VK45DE V8 engine, shared with the flagship Q45, which produced 340 horsepower and 333 lb-ft of torque. This engine was paired with a 5-speed automatic transmission with a manual shift mode. The M45 was well-equipped with standard features such as Sojourner leather seating, a Bose premium audio system, and high-intensity discharge (HID) xenon headlights. For 2004, a tire-pressure monitoring system and an in-dash 6-disc CD changer became standard. While praised for its powerful engine and comfortable ride, the second-generation M’s squared-off styling did not resonate strongly in the U.S. market, leading to modest sales.

Third Generation (2006-2010)

The third-generation INFINITI M, introduced for the 2006 model year, represented a major step forward and was a direct competitor to German rivals like the BMW 5 Series and Mercedes-Benz E-Class. Based on the Japanese Nissan Fuga, this generation utilized a more rigid version of the Nissan FM platform. It was offered in two main variants: the M35, powered by a 3.5-liter V6 engine (initially 280 hp, later upgraded to 303 hp), and the M45, featuring a 4.5-liter V8 with 335 horsepower. Both were available with a 5-speed automatic transmission, with the M35 RWD later receiving a 7-speed automatic. All-wheel-drive versions, the M35x and M45x, were also available. This generation was praised for its powerful performance, excellent handling, and spacious and well-appointed interior. It received numerous accolades, including being named the top luxury sedan by Consumer Reports in 2006.

Fourth Generation (2011-2013)

The fourth and final generation of the INFINITI M was unveiled in late 2009 for the 2011 model year. This generation was succeeded by the Q70 in 2014 due to a change in INFINITI’s naming strategy. The design was more curvaceous and expressive, inspired by the INFINITI Essence concept car. The model lineup was expanded to include the M37 with a 3.7-liter V6 engine producing 330 horsepower, and the M56 with a powerful 5.6-liter V8 engine generating 420 horsepower. Both were available in rear-wheel drive or all-wheel drive (M37x and M56x) and were paired with a standard 7-speed automatic transmission. This generation also introduced the M35h, INFINITI’s first hybrid vehicle, which offered a balance of performance and fuel efficiency. For the European market, a diesel variant, the M30d, was also available. The fourth-generation M was packed with advanced technology, including a blind-spot intervention system, active noise control, and a driving mode selector.

INFINITI M Facelifts and Yearly Updates

INFINITI M Variants and Features

Across its lifespan, the INFINITI M was offered in a variety of trims and packages that allowed buyers to tailor the car to their preferences. The first generation M30 was available as a coupe or convertible, with the latter featuring a power-operated soft top. Inside, it boasted standard leather seating and a premium Bose sound system. The second-generation M45 was offered in a single, well-equipped trim level that included leather upholstery, wood trim, and a comprehensive set of power features. The third generation introduced more distinct variants. The M35 and M45 could be had in a “Sport” package that added unique styling, a sport-tuned suspension, and larger wheels. The fourth generation further expanded the options with the M37, M56, and M35h hybrid. Available packages included a Technology Package with advanced safety features like Blind Spot Warning and Intelligent Brake Assist, and a Sport Package with 20-inch wheels, sport seats, and four-wheel active steering. The interior of the later generations featured high-quality materials, including available semi-aniline leather and Japanese Ash wood trim. The infotainment system evolved to include a hard-drive-based navigation system with real-time traffic and weather updates, a Bose surround sound system, and Bluetooth connectivity.

INFINITI M Engine, Performance, and Driving Experience

The INFINITI M was known for its engaging driving dynamics and powerful engine options. The first-generation M30, with its 162-horsepower V6, offered adequate performance for its time but was more of a comfortable cruiser than a sports car. The second-generation M45 dramatically changed this perception with its 340-horsepower V8, providing strong acceleration and a refined ride. The third generation continued this performance focus. The M35’s V6 engine provided brisk acceleration, while the M45’s V8 delivered thrilling performance that could rival many dedicated sports sedans. The availability of all-wheel drive in the M35x and M45x enhanced traction and all-weather capability. The fourth generation raised the bar even higher. The M37’s 330-horsepower V6 was smooth and responsive, while the M56’s 420-horsepower V8 offered truly exhilarating acceleration. The 7-speed automatic transmission provided quick and smooth shifts. The M35h hybrid model offered a unique driving experience, combining strong electric motor assistance with its V6 engine for impressive performance and improved fuel economy. Across all generations, the M’s suspension was tuned to provide a balance of comfort and handling, with the Sport packages offering a firmer ride and sharper responses.

INFINITI M Pricing and Mileage

The INFINITI M was positioned as a premium luxury vehicle, and its pricing reflected that. The first-generation M30 was introduced with a starting price of around $23,500. The second-generation M45 had a base price in the low $40,000s. The third-generation M35 started in the low $40,000s, with the M45 commanding a higher price. The fourth-generation M37 had a starting MSRP in the high $40,000s, while the V8-powered M56 was priced in the low $60,000s. In terms of fuel economy, the early V6-powered M30 offered an EPA-estimated 17-23 mpg in city/highway driving. The V8-powered M45 of the second generation had an EPA rating of around 16/22 mpg. The third-generation M35 achieved similar figures, while the M45 was slightly lower. The fourth-generation M37 with its more efficient V6 and 7-speed automatic transmission saw improvements, with an EPA rating of approximately 18/26 mpg for the rear-wheel-drive model. The powerful M56 had an EPA rating of around 16/25 mpg. The M35h hybrid was the most fuel-efficient, with an EPA combined rating in the high 20s. Real-world mileage would vary depending on driving conditions and habits.

INFINITI M Colors, Design, and Dimensions

The INFINITI M’s design evolved significantly over its four generations. The first-generation M30 had a classic, angular coupe design with a long hood and short deck. The second-generation M45 adopted a more muscular, “carved from a single block” design philosophy. The third generation introduced a more flowing and athletic design language, which was further refined in the fourth generation with its “wave-like” body lines. The interior design of the M was consistently praised for its quality and ergonomics, especially in the later generations which featured a driver-focused cockpit with high-quality materials like leather, wood, and aluminum trim.

A range of exterior colors was available for the INFINITI M, with popular choices including Obsidian Black, Liquid Platinum, and Malbec Black. The first generation M30 was offered in colors such as Burgundy Berry Pearl and White Quartz. In terms of dimensions, the M grew in size over the years. The first-generation M30 had a wheelbase of 103.0 inches and an overall length of 188.8 inches. The second-generation M45 had a wheelbase of 110.2 inches and a length of 197.2 inches. The third-generation M had a wheelbase of 114.2 inches and a length of around 194.1 inches. The fourth-generation M shared a similar wheelbase to the third generation but had a slightly longer overall length. Ground clearance and wheel sizes also varied by generation and trim level, with Sport models typically featuring larger wheels and a lower ride height.

INFINITI M Safety Features

• Airbags: All generations were equipped with airbags, with later models featuring dual-stage front airbags, front-seat side-impact airbags, and roof-mounted curtain side-impact airbags.
• ABS / EBD: Anti-lock brakes (ABS) were standard on all generations. Later models also included Electronic Brake-force Distribution (EBD) and Brake Assist.
• Electronic Stability Control: Vehicle Dynamic Control (VDC), INFINITI’s electronic stability control system, became standard on later generations.
• Crash Test Ratings: The third-generation INFINITI M earned a “Good” rating in all four of the Insurance Institute for Highway Safety’s (IIHS) crash tests, earning it a “Top Safety Pick” award. The fourth generation also received a “Top Safety Pick” designation from the IIHS and a 5-star overall safety rating from the National Highway Traffic Safety Administration (NHTSA).
• Other advanced safety systems: Later models offered advanced safety technologies such as a Lane Departure Warning and Prevention system, Blind Spot Warning and Intervention systems, and Intelligent Brake Assist with Forward Collision Warning.

INFINITI M Infotainment and Connectivity

The infotainment and connectivity features of the INFINITI M evolved significantly with each generation. The first-generation M30 came standard with a premium Bose audio system with a cassette player. The second-generation M45 introduced a 6-disc CD changer and an available DVD-based navigation system. The third generation saw further advancements with an available hard-drive-based navigation system, Bluetooth hands-free phone system, and an iPod interface. The fourth generation featured a more advanced infotainment system with a larger touchscreen display, a hard-drive navigation system with real-time traffic and weather, a Bose 5.1 Studio Surround sound system, and Bluetooth audio streaming. Apple CarPlay and Android Auto were not available on the INFINITI M as it was discontinued before these features became widespread. However, the later models offered robust connectivity for their time, including USB ports and auxiliary inputs.

INFINITI M Owner Reviews & Ratings

Owner reviews for the INFINITI M are generally positive, particularly for the third and fourth generations. Owners often praise the M’s powerful performance, comfortable and luxurious interior, and handsome styling. The V6 and V8 engines are frequently highlighted for their smooth power delivery and reliability. Many owners appreciate the M’s value proposition, offering a high level of performance and features for a competitive price compared to its German rivals. Some common complaints for older models include higher-than-average fuel consumption, especially for the V8 models, and some reports of premature wear on interior components. The first-generation M30 is often regarded as a comfortable and stylish cruiser, though some find its performance to be underwhelming. The second-generation M45 is praised for its V8 power but its styling is a polarizing topic. The third and fourth generations consistently receive high marks for reliability and driving enjoyment.

INFINITI M Comparison with Similar Cars

The INFINITI M competed in a highly competitive segment of the luxury car market. Its primary rivals included the BMW 5 Series, Mercedes-Benz E-Class, Lexus GS, and Acura RL. Compared to the BMW 5 Series, the INFINITI M generally offered more horsepower and a more luxurious standard feature set for a similar or lower price. The 5 Series, however, was often praised for its sharper handling and more driver-focused experience. Against the Mercedes-Benz E-Class, the M was often seen as a more performance-oriented and value-driven alternative, while the E-Class was renowned for its comfort, refinement, and brand prestige. The Lexus GS was another key competitor, known for its exceptional reliability and build quality. The INFINITI M often surpassed the GS in terms of raw power and driving excitement. The Acura RL, with its standard all-wheel drive, was a strong competitor in terms of all-weather capability, but the M often had an edge in terms of engine power and rear-wheel-drive dynamics. Ultimately, the INFINITI M carved out a niche for itself as a compelling choice for buyers seeking a powerful, luxurious, and well-equipped sedan that offered a strong value proposition in its class.

INFINITI M Awards and Recognition

• Consumer Reports Top Pick: The third-generation M35x was named the top luxury sedan by Consumer Reports in 2006.
• IIHS Top Safety Pick: The third and fourth generations of the INFINITI M received the “Top Safety Pick” award from the Insurance Institute for Highway Safety (IIHS).
• NHTSA 5-Star Overall Safety Rating: The fourth-generation INFINITI M received a 5-star overall safety rating from the National Highway Traffic Safety Administration (NHTSA).
• Ward’s 10 Best Engines: The 3.5-liter V6 engine used in the M35h hybrid was named to Ward’s 10 Best Engines list.

Interesting Facts about INFINITI M

• The first-generation INFINITI M30 convertible was not a factory-built model. Coupes were shipped to the American Sunroof Corporation (ASC) in California for conversion.
• The second-generation M45 was essentially a rebadged version of the Japanese domestic market Nissan Gloria.
• The third-generation M was known as the Nissan Fuga in Japan.
• The fourth-generation M35h set a Guinness World Record in 2011 for the world’s fastest accelerating full hybrid.

INFINITI M Legacy and Influence

The INFINITI M played a crucial role in establishing INFINITI as a credible competitor in the luxury car market. While the first generation had a modest impact, the subsequent sedan generations, particularly the third and fourth, demonstrated that INFINITI could build a car that could compete head-to-head with the best from Germany and Japan. The M series helped to define INFINITI’s brand identity, which centered on a combination of performance, technology, and distinctive design. The success of the M sedan paved the way for future INFINITI models and helped to build the brand’s reputation for producing engaging and luxurious vehicles. Although the M nameplate was retired, its legacy continues in the INFINITI Q70, which carried on the M’s mission of challenging the established players in the mid-size luxury sedan segment. However, the INFINITI M, and later the Q70, struggled to capture a significant market share against its more established rivals. Despite its critical acclaim, the M remained a niche player in the segment.

INFINITI M Global Availability

The INFINITI M was primarily sold in the North American market, where it was a key model in INFINITI’s lineup. It was also available in other markets, including South Korea and Russia. In Japan, the second, third, and fourth generations of the M were sold as the Nissan Gloria and Nissan Fuga, respectively. The INFINITI brand was officially launched in Europe in the late 2000s, and the fourth-generation M was sold there, including a diesel-powered M30d variant to cater to European market preferences. All INFINITI M models were manufactured in Japan. The M was available in both left-hand drive and right-hand drive configurations, although the right-hand drive models were primarily for the Japanese domestic market under the Nissan brand. The INFINITI brand later withdrew from the Western European market in 2020.

INFINITI M Maintenance and Ownership Costs

The ownership costs for an INFINITI M are generally considered to be competitive for a luxury vehicle. According to RepairPal, the average annual repair cost for an INFINITI is around $638, which is in line with other luxury brands. Maintenance costs for the M will vary depending on the generation and engine type. V6 models are typically less expensive to maintain than the more complex V8 models. Routine maintenance, such as oil changes and tire rotations, is crucial to ensuring the longevity and reliability of the vehicle. Some owners of older, higher-mileage M models have reported issues with oil consumption and electronic components. The resale value of the INFINITI M is generally lower than that of its main German and Japanese rivals, which can make it an attractive used car purchase. INFINITI’s warranty coverage was typically for 4 years/60,000 miles for the basic warranty and 6 years/70,000 miles for the powertrain warranty.

Final Words about INFINITI M

The INFINITI M, across its four generations, represented a compelling and often overlooked choice in the competitive mid-size luxury car segment. From its origins as a stylish coupe and convertible to its evolution into a powerful and sophisticated sedan, the M consistently offered a strong blend of performance, luxury, and value. It was a car that dared to challenge the established order and, in many respects, succeeded in delivering a truly engaging and rewarding driving experience. While it may not have achieved the sales success of some of its rivals, the INFINITI M left a lasting legacy as a car that embodied the spirit of the INFINITI brand. For those seeking a used luxury car that offers a unique combination of power, style, and features, the INFINITI M remains a worthy and attractive option.