The Infiniti G35 Sedan (V36) 3.5i V6 24V, producing 309 horsepower, was a performance-oriented luxury car produced from 2006 to 2008. Positioned as the flagship sedan in Infiniti’s lineup during this period, the G35 aimed to compete with established European sports sedans like the BMW 3 Series and Audi A4. It represented Infiniti’s commitment to blending Japanese reliability with a more dynamic driving experience. The V36 chassis underpinned the G35, sharing components with the Nissan 350Z, but with a focus on refinement and comfort alongside performance. This particular variant, with its 3.5-liter V6, was a key offering, providing a substantial power upgrade over the earlier 2.5-liter models.
Technical Specifications
| Brand | Infiniti |
| Model | G |
| Generation | G35 Sedan (V36) |
| Type (Engine) | 3.5 i V6 24V (309 Hp) |
| Start of production | 2006 |
| End of production | 2008 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 11.8 l/100 km (19.9 US mpg) |
| Fuel consumption (extra urban) | 8.7 l/100 km (27 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.8 sec |
| Acceleration 0 – 62 mph | 5.8 sec |
| Acceleration 0 – 60 mph | 5.5 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Weight-to-power ratio | 5.1 kg/Hp |
| Weight-to-torque ratio | 4.5 kg/Nm |
| Power | 309 Hp @ 6800 rpm |
| Power per litre | 88.3 Hp/l |
| Torque | 355 Nm @ 4800 rpm (261.83 lb.-ft. @ 4800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | VQ35HR |
| Engine displacement | 3498 cm3 (213.46 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 95.5 mm (3.76 in.) |
| Piston Stroke | 81.4 mm (3.2 in.) |
| Compression ratio | 10.6:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 4.9 l (5.18 US qt | 4.31 UK qt) |
| Coolant capacity | 9.1 l (9.62 US qt | 8.01 UK qt) |
| Kerb Weight | 1580 kg (3483.3 lbs.) |
| Max. weight | 2045 kg (4508.45 lbs.) |
| Max load | 465 kg (1025.15 lbs.) |
| Trunk (boot) space – minimum | 411 l (14.51 cu. ft.) |
| Fuel tank capacity | 76 l (20.08 US gal | 16.72 UK gal) |
| Length | 4730 mm (186.22 in.) |
| Width | 1750 mm (68.9 in.) |
| Height | 1471 mm (57.91 in.) |
| Wheelbase | 2850 mm (112.2 in.) |
| Front track | 1514 mm (59.61 in.) |
| Rear (Back) track | 1506 mm (59.29 in.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 6 |
| Gearbox type | Manual transmission |
| Front suspension | Coil spring |
| Rear suspension | Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Tires size | 215/55 R17 |
INTRODUCTION
The Infiniti G35 Sedan, specifically the 3.5i V6 24V variant produced between 2006 and 2008, represented a significant step forward for the brand. Built on the rear-wheel-drive V36 platform, it aimed to deliver a more engaging driving experience than its predecessors. This generation G35 was a direct response to consumer demand for a sportier, more refined alternative to traditional Japanese sedans. The 309-horsepower engine was the top-tier offering for the G35 sedan, placing it above the earlier 2.5-liter models in terms of performance and price. It was a key model in establishing Infiniti’s identity as a luxury performance brand in the North American market.
Powertrain & Engine Architecture
At the heart of the G35 3.5i lay the VQ35HR 3.5-liter V6 engine. This engine was a member of Nissan’s highly-regarded VQ engine family, known for its smooth operation, reliability, and power output. The “HR” designation signified “High Revolution,” indicating improvements to the engine’s valvetrain and intake system for increased high-RPM performance. The engine featured a 60-degree V-angle, dual overhead camshafts (DOHC), and four valves per cylinder. Fuel delivery was handled by a multi-port fuel injection system, ensuring precise fuel metering. The 6-speed manual transmission was standard, offering drivers full control over the engine’s power. The VQ35HR produced 309 hp at 6800 rpm and 261 lb-ft of torque at 4800 rpm. This engine was known for its responsiveness and willingness to rev, providing a satisfying driving experience.
Driving Characteristics
The G35 3.5i with the 6-speed manual transmission delivered a genuinely sporty driving experience. Acceleration was brisk, with 0-60 mph times consistently in the mid-5-second range. The rear-wheel-drive layout contributed to balanced handling, and the well-tuned suspension provided a comfortable ride without sacrificing cornering ability. Compared to the earlier 2.5-liter G35, the 3.5i offered a substantial increase in power and torque, resulting in noticeably quicker acceleration and improved passing performance. While the automatic transmission option dulled the experience somewhat, the manual version allowed drivers to fully exploit the engine’s capabilities. The gear ratios were well-chosen, providing strong acceleration in each gear.
Equipment & Trim Levels
The G35 3.5i typically came well-equipped, even in its base form. Standard features included leather upholstery, power-adjustable front seats, a premium sound system, automatic climate control, and alloy wheels. Optional extras included a navigation system, sunroof, and upgraded audio system. The interior design was modern and sophisticated, with a focus on driver ergonomics. The dashboard layout was clean and intuitive, with easy-to-read gauges. The G35 aimed to provide a luxurious and comfortable interior environment, befitting its position as a premium sedan.
Chassis & Braking
The G35 Sedan utilized a robust chassis with independent suspension all around. The front suspension featured coil springs and stabilizer bar, while the rear suspension also employed coil springs. This setup provided a good balance between ride comfort and handling precision. Braking duties were handled by ventilated disc brakes at all four corners, providing ample stopping power. An Anti-lock Braking System (ABS) was standard, enhancing safety and control during hard braking. The chassis was designed to be rigid, contributing to the car’s overall handling stability.
Market Reception & Comparison
The Infiniti G35 3.5i was generally well-received by automotive critics. It was praised for its powerful engine, sporty handling, and luxurious interior. Compared to its competitors, such as the BMW 3 Series and Audi A4, the G35 offered a compelling value proposition, providing similar performance and features at a lower price point. Fuel economy was reasonable for a performance sedan, averaging around 19 mpg in the city and 27 mpg on the highway. Reliability was also a strong point, with the VQ35HR engine proving to be exceptionally durable. Some critics noted that the interior materials weren’t quite as premium as those found in some European rivals, but overall, the G35 was considered a highly competitive offering.
Legacy
The Infiniti G35 3.5i has proven to be a reliable and durable vehicle, and well-maintained examples continue to be sought after in the used car market. The VQ35HR engine is known for its longevity, and with proper maintenance, it can easily exceed 200,000 miles. The G35’s sporty handling and stylish design have also contributed to its enduring appeal. It remains a popular choice for enthusiasts looking for an affordable and engaging performance sedan. The V36 platform and the VQ35HR engine established a strong foundation for future Infiniti models, solidifying the brand’s reputation for building reliable and enjoyable vehicles.
