The 2008 Infiniti G35 sedan represents a pinnacle of Japanese engineering from an era when mechanical soul and analog feedback were still prioritized over digital intervention. While the 2008 model year saw the G coupe transition to the G37, the sedan retained its G35 nomenclature, refining the second-generation redesign that debuted just one year prior. It remains one of the few luxury vehicles from the late 2000s that can genuinely challenge the E90-generation BMW 3 Series in terms of driving dynamics while offering superior reliability and a more distinct aesthetic.

Powered by the legendary VQ35HR V6 engine, the 2008 G35 sedan delivers 306 horsepower and a visceral exhaust note that modern turbocharged four-cylinder engines simply cannot replicate. For enthusiasts or used car buyers looking for a rear-wheel-drive sports sedan that balances daily usability with track-ready hardware, this specific model year occupies a "sweet spot" in the market, combining refined interior technology with raw mechanical performance.

Technical Specifications and Performance Heart

The soul of the 2008 Infiniti G35 sedan is its engine, specifically the "HR" variant of the 3.5-liter V6. The HR stands for "High Response" or "High Revolution," and it was a significant departure from the previous VQ35DE used in earlier models.

The VQ35HR Engineering

Engineers redesigned approximately 80% of the internal components for the HR iteration. Key enhancements included a structural ladder frame at the bottom of the engine block to reduce vibration and increase rigidity, and an increase in the block height. These changes allowed for longer connecting rods, reducing side-thrust friction against the cylinder walls.

The result is an engine that revs freely to a 7,600 RPM redline. It produces 306 horsepower at 6,800 RPM and 268 lb-ft of torque at 4,800 RPM. A signature feature of this engine is the dual-path intake system. By using two separate air boxes and throttle bodies, Infiniti reduced airflow resistance by 18%, allowing the engine to breathe more efficiently at high speeds. This setup not only adds a few horsepower at cruising speeds due to the ram-air effect but also creates a symmetrical look under the hood that appeals to automotive purists.

Transmission and Drivetrain Dynamics

The 2008 G35 offered two primary transmission choices:

  1. Five-Speed Automatic: This unit features Downshift Rev Matching (DRM), which blips the throttle during downshifts to synchronize engine speed, ensuring smoother transitions and better stability during spirited driving.
  2. Six-Speed Manual: Found on the Sport 6MT trim, this transmission features a short-throw shifter and a relatively heavy, mechanical clutch feel. While some drivers find the clutch "grabby" in stop-and-go traffic, it offers a level of engagement that is increasingly rare in the luxury segment.

The car was available in both Rear-Wheel Drive (RWD) for maximum agility and All-Wheel Drive (AWD), marketed as the G35x. The G35x utilizes the Attesa E-TS system, which primarily sends power to the rear wheels to maintain a sporty feel but can divert up to 50% of torque to the front wheels within milliseconds if slip is detected.

Handling and the Front Mid-ship Platform

Infiniti built the G35 on its second-generation FM (Front Mid-ship) platform. The "Front Mid-ship" designation means the engine is positioned further back in the chassis, with the center of its mass located behind the front axle. This layout optimizes weight distribution, resulting in a 52/48 front-to-rear balance that significantly reduces understeer and improves turn-in response.

Suspension and Steering Feedback

The suspension is a four-wheel independent multi-link design, utilizing extensive lightweight aluminum components to reduce unsprung weight. This allows the dampers to react more quickly to road imperfections. In our testing of the Sport-tuned suspension, the G35 demonstrates a firm but controlled ride. It lacks the "floaty" sensation found in many Japanese luxury cars of that era, instead communicating road textures directly to the driver through the speed-sensitive rack-and-pinion steering.

For those seeking the ultimate in tech-driven handling, the Sport RWD models could be equipped with Four-Wheel Active Steer (4WAS). This system adjusts the steering gear ratio of the front wheels and the geometry of the rear wheels based on speed, making the car feel more maneuverable in parking lots and more stable during high-speed lane changes on the highway.

Interior Craftsmanship and the Takumi Approach

The interior of the 2008 G35 sedan was a significant leap forward in material quality compared to the first generation. Infiniti designers focused on a concept they called "modern warmth," moving away from the cold, clinical interiors often found in German competitors.

Japanese Aesthetic Touches

A standout feature is the "Washi" textured aluminum trim. Inspired by traditional handmade Japanese paper, this trim has a tactile, grained surface that resists fingerprints and reflects light in a soft, elegant manner. For those preferring a more traditional look, premium African Rosewood was available as an option, providing a deep, rich contrast to the leather surfaces.

The steering wheel is another highlight. Hand-stitched with a specific cross-pattern, the stitching is intentionally positioned away from the driver’s primary grip points to prevent irritation during long drives. The instrument cluster features white-and-violet electroluminescent gauges, which offer high contrast for readability while maintaining a premium, high-tech ambiance.

Audiophile Experience: Bose Studio on Wheels

The 2008 model year continued to offer the Bose "Studio on Wheels" audio system. This system was revolutionary for its time, featuring 10-inch woofers integrated into the front doors. Unlike standard car audio that places small speakers in the doors, this 3-way array uses the door cavity as a resonance chamber, providing deep, punchy bass that feels physically present. The system uses 24-bit Burr-Brown digital-to-analog converters, ensuring that even compressed digital music files retain a high degree of clarity and dynamic range.

2008 Model Year Enhancements

While the 2008 G35 sedan looks nearly identical to the 2007 model, several key updates made it more competitive:

  • AWD Sport Package: For the first time, Infiniti offered a Sport Package for the G35x AWD model. This allowed buyers in snow-belt states to enjoy the aggressive front fascia, bolstered sport seats, and 18-inch wheels without sacrificing all-weather traction.
  • Technological Integration: Standard XM Satellite Radio became part of the package, and the navigation system was updated to include a 9.3 GB Music Box hard drive for storing digital music. An available iPod interface also allowed for more seamless integration of personal devices compared to the basic auxiliary jacks of previous years.
  • New Exterior Colors: The introduction of Desert Platinum provided a fresh aesthetic option for the "Sleek Wave" body design.

Ownership Realities: What to Expect

Buying a 2008 Infiniti G35 today involves balancing its high performance against its maintenance requirements. While the VQ engine is famously durable—often reaching 200,000 miles with basic care—there are specific "Experience-driven" nuances that potential owners should be aware of.

Reliability and Common Issues

The VQ35HR is a robust powerplant, but it has one well-documented Achilles' heel: the internal oil gallery gaskets. In early HR engines, these gaskets were made of a paper-like material that can fail over time, leading to a drop in oil pressure. If you are looking at a high-mileage G35, checking the oil pressure at idle is a critical diagnostic step. Replacing these gaskets is a labor-intensive job, as it requires removing the timing cover.

Other minor issues include:

  • Door Lock Actuators: These are known to fail intermittently, a common trait in Nissan/Infiniti products of this era.
  • Dashboard Materials: While much improved over the 2003-2006 models, some owners report that the dashboard surface can become sticky or "melt" in extremely hot climates if not properly protected.
  • Fuel Economy: Real-world performance is thirsty. Expect roughly 17 MPG in the city and 24 MPG on the highway. The VQ35HR requires 91 octane premium fuel to achieve its rated performance.

Practicality Constraints

One of the most significant drawbacks of the G35 sedan is its cargo flexibility. The rear seats do not fold down. While there is a center pass-through for long items like skis, the inability to expand the 13.5 cubic-foot trunk limits the car's utility for large hardware store runs or moving furniture. Additionally, the interior storage is somewhat limited, with small door pockets and a center console that prioritize ergonomics over sheer volume.

The 2008 G35 vs. The Competition

To understand the value of the 2008 G35, it must be viewed through the lens of its contemporaries.

  • BMW 335i (E90): The BMW offers more torque thanks to its twin-turbochargers, but it suffers from significantly higher maintenance costs and reliability issues involving high-pressure fuel pumps and cooling systems. The G35 provides a more reliable, naturally aspirated alternative that is 90% as capable on a canyon road.
  • Lexus IS350: The Lexus offers a quieter, softer ride and legendary reliability. However, it lacks the raw, mechanical steering feel and the "playful" rear-end nature of the G35. The G35 feels like a sports car in a sedan's body; the IS350 feels like a luxury car with a fast engine.
  • Acura TL: The TL is a front-wheel-drive platform. While the Type-S version is formidable, it cannot match the G35’s rear-wheel-drive balance and rotation under power.

Summary of the 2008 Infiniti G35 Sedan Experience

The 2008 Infiniti G35 sedan is a rare example of a car that succeeds by being more than the sum of its parts. It doesn't have the prestige of a German badge, but it offers a mechanical honesty that is refreshing in the modern era of electric power steering and muffled exhaust notes. Its combination of a high-revving V6, a sophisticated chassis, and a uniquely Japanese interior makes it a standout choice for the enthusiast on a budget.

Whether you choose the RWD Sport for its purity or the G35x for its year-round capability, the G35 provides a visceral driving experience. It rewards the driver who likes to hear the mechanical symphony of an engine working toward its redline, yet it remains refined enough to serve as a daily executive transport.

Conclusion

In the landscape of modern performance sedans, the 2008 Infiniti G35 stands as a testament to a time when driving engagement was a primary design goal. It offers a 306-horsepower V6 that is as reliable as it is exciting, a chassis that rivals the world's best, and an interior that still feels premium over a decade later. While buyers should be mindful of specific maintenance items like gallery gaskets and the limitations of its non-folding rear seats, the overall package remains one of the best value-for-money propositions in the used car market.

FAQ

Is the 2008 Infiniti G35 a reliable car?

Yes, the 2008 G35 is considered above average in terms of reliability. The VQ35HR engine and the transmissions (both manual and automatic) are known for their longevity. However, potential buyers should check the service history for oil pressure issues related to the gallery gaskets and ensure regular fluid changes for the cooling and braking systems.

What is the difference between the G35 and G37 in 2008?

In 2008, the Infiniti G-series was in a transition phase. The Coupe was redesigned and renamed the G37, receiving a larger 3.7-liter engine. The Sedan, however, remained the G35, continuing to use the 3.5-liter VQ35HR engine until the following year (2009), when the sedan also transitioned to the G37 name and engine.

Does the 2008 Infiniti G35 require premium gas?

Yes. To achieve the advertised 306 horsepower and prevent engine knocking, Infiniti recommends using premium unleaded fuel with an octane rating of at least 91. Using lower-octane fuel can result in reduced performance and decreased fuel efficiency.

Does the 2008 Infiniti G35 have Bluetooth or iPod connectivity?

The 2008 model year introduced enhanced technology features. While Bluetooth for hands-free calling was available on models equipped with the Premium Package, a dedicated iPod interface was also introduced as an option, allowing drivers to control their music through the car's steering wheel buttons and center display.

Which trim level of the 2008 G35 is the best?

For enthusiasts, the Sport 6MT is the most desirable due to its manual transmission, limited-slip differential, and larger brakes. For most buyers, the Journey trim with the Premium Package offers the best balance of luxury features like the Bose audio system and sunroof, while the G35x is the go-to choice for those living in snowy climates.