The Evolution of the Infiniti EX and FX
The luxury crossover SUV segment has experienced significant growth and transformation over the past two decades, with Infiniti—Nissan’s premium brand—playing a pivotal role through its innovative models. Among these, the Infiniti EX and FX stand out as flagship vehicles that exemplify the brand’s commitment to blending performance, luxury, and distinctive styling. This article provides a detailed history of the Infiniti EX and FX models, covering their years of production, model variations, trim levels, and the evolution of their design and features.
Introduction to Infiniti’s Crossover Lineup
Infiniti entered the luxury SUV market in the early 2000s, initially with the QX4, a rebadged Nissan Pathfinder. Recognizing the need for more stylish and performance-oriented vehicles, Infiniti launched the FX in 2003, which quickly became a flagship for design and sporty dynamics. Later, the EX was introduced as a smaller, more urban-friendly crossover, filling a niche between the compact G-series sedans and larger SUVs.
The Infiniti FX: Origins and Evolution
First Generation Infiniti FX (S50; 2003–2008)
- Introduction and Background:
Launched in 2003 as a 2003 model, the Infiniti FX (internal code S50) marked Infiniti’s move into the luxury mid-size SUV segment with a focus on sporty styling and dynamic performance. - Design and Features:
The first-generation FX was characterized by its bold, coupe-like roofline and aggressive stance. It was built on Nissan’s FM platform, sharing components with the Nissan 350Z and Skyline. - Powertrain Options:
- 2003–2006: 3.5-liter V6 (VQ35DE) producing 280 horsepower.
- 2006–2008: Introduction of a 4.5-liter V8 (VK45DE), producing 315 horsepower, for higher-end models.
- Trim Levels:
- FX35: Powered by the V6 engine, focused on sporty driving.
- FX45: Equipped with the V8 engine, offering enhanced performance.
- Optional packages included the Premium Package, Touring Package, and Sport Package, adding features like leather seats, Bose audio systems, upgraded wheels, and sport-tuned suspension.
- Market Reception:
The FX was praised for its distinctive styling, powerful engines, and sporty handling, although its fuel economy and interior space received some criticism.
Second Generation Infiniti FX (S51; 2008–2017)
- Launch and Development:
The second-generation FX debuted at the 2008 North American International Auto Show as a 2009 model, with significant updates in design, technology, and performance. - Design and Platform:
While retaining the coupe-like profile, the FX received a more refined exterior, with a longer wheelbase and improved aerodynamics. It was built on the Nissan FM platform, with enhancements for ride comfort and handling. - Facelift and Mid-Cycle Updates:
In 2013, the FX received a mid-cycle refresh, featuring updated front and rear styling, new LED headlights, and interior upgrades. - Powertrain Options:
- FX35: Continued with the 3.5-liter V6 (VQ35DE), now producing 303 horsepower.
- FX37: Rebranded in 2013, powered by a 3.7-liter V6 (VQ37VHR), producing 325 horsepower.
- FX50: Equipped with a 5.0-liter V8 (V8 VQ50DE), producing 390 horsepower.
- FX50 S: The sportier version with a sport-tuned suspension and unique styling cues.
- Trim Levels and Packages:
- Base: Standard features included leather seats, premium audio, and alloy wheels.
- Luxury: Added features such as heated and ventilated seats, navigation, and premium interior materials.
- Performance/Sport: Included sport-tuned suspension, larger wheels, and sportier styling cues.
- Technology Packages: Incorporating advanced safety and convenience features like around-view cameras, adaptive cruise control, and premium audio systems.
- Special Editions:
- FX Limited Edition (2014): Featured unique exterior colors, interior trim, and exclusive badging.
- FX S (2013–2017): High-performance model with a 5.0-liter V8, sport-tuned suspension, and aggressive styling.
- Market Position and Discontinuation:
The FX maintained its reputation as a sporty, stylish SUV until it was phased out in favor of the new Infiniti QX70, which inherited its sporty ethos but with more modern styling and technology.
The Infiniti EX: A Smaller, More Urban Crossover
First Generation Infiniti EX (SU30; 2008–2013)
- Introduction and Rationale:
Launched in 2008 as a 2008 model, the Infiniti EX was designed to appeal to urban buyers seeking a compact luxury crossover with sporty styling and versatility. - Platform and Design:
Built on the Nissan FM platform shared with the FX, the EX featured a more compact footprint, with a focus on style and agility. - Powertrain Options:
- 2008–2013: 3.5-liter V6 (VQ35DE) producing 297–303 horsepower.
- An optional all-wheel-drive (AWD) system was available across trims.
- Trim Levels and Features:
- Base: Standard features including leather seats, premium audio, and alloy wheels.
- Journey: Added options such as navigation, upgraded audio, and larger wheels.
- G37 Sport (2010–2013): The sport-oriented trim with sport-tuned suspension, unique styling elements, and larger wheels.
- Special Editions and Packages:
- Premium Package: Included leather upholstery, premium sound, and advanced navigation.
- Premium Plus Package: Added features like a power liftgate, sunroof, and upgraded interior materials.
- Market Position:
The EX was praised for its sporty handling, premium interior, and distinctive styling cues. Its compact size made it particularly popular in urban markets.
Second Generation Infiniti EX (2013–2015)
- Facelift and Updates:
The second-generation EX received a mid-cycle refresh in 2013, aligning stylistically with the newer Infiniti design language, including a larger grille, LED lighting, and interior upgrades. - Powertrain:
- Continued with the 3.5-liter V6, with minor tuning increases.
- The G37 Sport trim was renamed EX37, emphasizing the sporty character.
- Features and Trim Levels:
The trim hierarchy remained similar, with added technology options such as Around View Monitor, Bose audio, and advanced safety features. - Discontinuation and Replacement:
The EX was eventually discontinued after the 2015 model year, replaced by the Infiniti QX50, which offered a more modern platform and technology suite.
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Key Features and Technological Evolution
Throughout their production runs, both the FX and EX models saw progressive enhancements in technology, safety, and luxury features:
- Infiniti’s Signature Design Elements:
Both models incorporated the brand’s signature double-arch grille, sleek lines, and LED lighting. - Safety and Assistance:
Features such as adaptive cruise control, around-view monitors, lane departure warning, and forward collision mitigation became available over time. - Infotainment:
Infotainment systems evolved from basic audio controls to sophisticated touchscreens with navigation, Bluetooth connectivity, and premium audio systems like Bose. - Performance Enhancements:
The engines saw incremental improvements in power and efficiency, with the addition of sport-tuned suspensions and drive mode selectors in higher trims.
Legacy and Impact
The Infiniti FX and EX played crucial roles in shaping Infiniti’s image as a maker of sporty, stylish, and luxurious crossovers. The FX, with its bold styling and powerful engines, became an icon in the segment, influencing the design of later models like the QX70. The EX, on the other hand, carved out a niche for urban-oriented luxury crossovers, blending sporty handling with everyday practicality.
The discontinuation of the EX and FX marked a shift towards more modern, technologically advanced vehicles like the QX50 and QX55, which continue the sporty and luxury traditions established by their predecessors.
Conclusion
From their inception in the early 2000s to their phased-out status in the mid-2010s, the Infiniti FX and EX models demonstrated a commitment to blending performance, luxury, and distinctive styling. Their evolution reflects broader industry trends toward more refined design, advanced safety technology, and versatile performance.
The Infiniti FX, introduced in 2003, set a benchmark for sporty luxury SUVs with its coupe-like styling and powerful engine options, evolving through two generations until its discontinuation in 2017. Meanwhile, the smaller EX, produced from 2008 to 2015, offered a more compact, urban-friendly crossover with a focus on sporty handling and premium features.
Today, these models are remembered for their bold design and innovative features, laying the groundwork for Infiniti’s continued pursuit of excellence in the luxury SUV market.
