Infiniti M

Infiniti M
U.S. National Highway Traffic Safety Administration · Public domain · source
Name	Infiniti M
Manufacturer	Infiniti (Nissan)
Production	1986–2019
Class	Executive car
Body style	4-door sedan
Layout	Front-engine, rear-wheel-drive / All-wheel-drive

Infiniti M

The Infiniti M is a mid-size luxury sedan produced by Infiniti, the luxury vehicle division of Nissan Motor Company, positioned to compete with rivals from Mercedes-Benz, BMW, Audi, Lexus and Acura. Introduced to the market during the late 1980s and marketed through multiple generations, the model served as a flagship or near-flagship offering in Infiniti's lineup alongside models from Nissan, aimed at buyers in North America, Europe and Asia. The vehicle underwent significant evolutions in design, engineering and powertrains in response to trends set by manufacturers such as Jaguar Cars, Volvo Cars, Cadillac, and Lincoln Motor Company.

Overview

The vehicle was developed by Infiniti under parent company Nissan Motor Company to address segments dominated by BMW 5 Series, Mercedes-Benz E-Class, Audi A6, and Lexus GS buyers, with strategic launches tied to events like the Tokyo Motor Show, Detroit Auto Show, and market introductions in United States, Canada, Japan, and Europe. Market positioning emphasized competition with executive sedans from BMW AG, Daimler AG, Volkswagen Group, and Toyota Motor Corporation divisions while leveraging technology collaborations within the Renault–Nissan–Mitsubishi Alliance. Marketing and dealership networks coordinated with distributors such as Nissan North America and regional arms in Europe and Asia.

Development and Design

Initial development teams drew talent from within Nissan, including design studios in Yokohama and London, with influences traceable to concept vehicles shown at the Geneva Motor Show and New York International Auto Show. Engineering priorities mirrored those of contemporaries from BMW, Mercedes-Benz, and Audi—balancing chassis dynamics, powertrain refinement, and interior craftsmanship, with suppliers like Brembo, Bosch, ZF Friedrichshafen, and Tenneco contributing components. Design language evolved across facelifts with cues similar to work from designers associated with Pininfarina, Italdesign Giugiaro, and in-house stylists who previously worked on Nissan Skyline and Nissan 300ZX projects.

Generations

Multiple generations aligned with broader corporate strategies at Nissan Motor Corporation and the Renault–Nissan Alliance. Early iterations overlapped with products such as the Nissan Cedric and Nissan Maxima, while later generations shared platforms with the Infiniti Q70 and benefitted from technology transfers from Nissan GT-R developments and Renault platform engineering. Each generation adapted to regulatory environments influenced by authorities like the United States Environmental Protection Agency, European Union, and safety standards set by organizations such as the National Highway Traffic Safety Administration.

Models and Trim Levels

Trim hierarchies mirrored luxury practices from Lexus, BMW, and Mercedes-Benz, offering variants including base, sport, and long-wheelbase or performance-oriented editions comparable to those from Alpina, AMG, and S Line packages. Powertrain choices—naturally aspirated V6, twin-turbocharged V6, and V8 options—were marketed across trim levels to appeal to buyers of Cadillac CTS, Acura TLX, and Infiniti Q50 rivals. Options and packages included features developed in partnership with suppliers such as Harman International, Nissan. Special market editions were sometimes released in collaboration with regional importers and dealerships in Middle East, Australia, and China.

Performance and Specifications

Performance variants drew on engineering lessons from Nissan Z-cars and grand touring models, with engine tuning and transmissions provided by teams experienced with the Nissan VQ engine family and automatic gearboxes from Jatco. Chassis tuning sought to balance comfort and handling akin to BMW M Division and AMG sport models, with suspension components from suppliers including Bilstein and braking systems often specified by Brembo. Fuel economy and emissions evolved to meet standards influenced by EPA regulations, while performance benchmarks were routinely compared against the BMW 5 Series, Mercedes E-Class, and Lexus GS.

Safety and Technology

Advanced driver assistance and safety systems incorporated technology from Bosch, Nissan Intelligent Mobility initiatives, and collaborations with suppliers such as Denso and Continental AG. Features introduced over its lifecycle included adaptive cruise control, lane departure warning, blind-spot monitoring, and airbag systems engineered to meet protocols by agencies like the NHTSA and testing by Euro NCAP. Infotainment and connectivity systems integrated hardware and software from Sony, Harman Kardon, and navigation platforms that leveraged mapping data from providers such as HERE Technologies and TomTom.

Motorsport and Special Editions

Though primarily a luxury sedan, the model inspired limited special editions and aftermarket performance conversions akin to offerings from Brabus, TRD, and Mansory that showcased tuned suspensions, power upgrades, and bespoke interiors. Enthusiast communities and clubs such as regional chapters of Infiniti Owners Club and motorsport events at circuits like Suzuka Circuit, Laguna Seca, and Silverstone Circuit occasionally feature modified examples, while privateer teams have campaigned variants in club-level touring car and endurance races alongside competitors from BMW Motorsport and Mercedes-AMG Motorsport.

Category:Infiniti vehicles