The Mitsubishi Eclipse Spyder IV (4G) GT 3.8L V6 MIVEC Automatic, produced from 2006 to 2009, represented the final iteration of the Eclipse Spyder convertible. Positioned as the top-tier trim level within the fourth-generation Eclipse range, it aimed to deliver a blend of sporty performance and open-air driving enjoyment. This model occupied a niche in the American market, competing with other affordable sports convertibles like the Mazda MX-5 Miata and the Ford Mustang Convertible. It was built on the GS platform, sharing components with the Mitsubishi Galant and the Chrysler Crossfire. The Spyder, in general, was intended to broaden the Eclipse’s appeal beyond the coupe’s more performance-focused image.
Technical Specifications
| Brand | Mitsubishi |
| Model | Eclipse |
| Generation | Eclipse Spyder IV (4G) |
| Type | GT 3.8L V6 MIVEC (265 Hp) Automatic |
| Start of production | 2006 |
| End of production | 2009 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 3 |
| Fuel Type | Petrol (Gasoline) |
| Power | 265 Hp @ 5750 rpm |
| Power per litre | 69.2 Hp/l |
| Torque | 329 Nm @ 2750 rpm / 242.66 lb.-ft. @ 2750 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | 6G75 |
| Engine displacement | 3828 cm3 / 233.6 cu. in. |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 95 mm / 3.74 in. |
| Piston Stroke | 90 mm / 3.54 in. |
| Compression ratio | 9.8:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 4.3 l / 4.54 US qt | 3.78 UK qt |
| Coolant | 8 l / 8.45 US qt | 7.04 UK qt |
| Drivetrain Architecture | Front wheel drive |
| Number of gears and type of gearbox | 5 gears, automatic transmission |
| Front suspension | Independent type McPherson |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 235/45 R18 |
| Wheel rims size | 18 |
Powertrain & Engine Architecture
The heart of the Eclipse Spyder GT was the 6G75 3.8-liter V6 engine. This engine, a member of Mitsubishi’s 6G7 series, featured a single overhead camshaft (SOHC) design and Mitsubishi’s MIVEC (Mitsubishi Innovative Valve timing and lift Electronic Control) technology. MIVEC allowed for variable valve timing on both the intake and exhaust valves, optimizing performance and fuel efficiency across the engine’s operating range. The engine utilized multi-port fuel injection to deliver fuel directly to each cylinder. The 6G75 was known for its relatively smooth power delivery and robust construction. Paired with the engine was a five-speed automatic transmission. This transmission was designed to provide smooth shifts and adequate acceleration, though it wasn’t known for particularly sporty or quick gear changes. The engine was mounted longitudinally, driving the front wheels.
Driving Characteristics
The 265 horsepower and 242 lb-ft of torque provided by the 3.8L V6 delivered respectable acceleration for a front-wheel-drive convertible. While not a track-focused machine, the Spyder GT offered enough power for confident highway merging and passing. The automatic transmission, while smooth, did detract somewhat from the driving experience compared to the available five-speed manual. Gear ratios were tuned for a balance of acceleration and fuel economy. The front-wheel-drive configuration meant that torque steer was noticeable under hard acceleration, particularly on less-than-ideal road surfaces. The Spyder’s weight, inherent in a convertible design, also impacted handling, making it less nimble than the Eclipse coupe.
Equipment & Trim Levels
The GT trim level represented the highest level of equipment offered on the Eclipse Spyder. Standard features included leather upholstery, automatic climate control, a premium sound system (often a Rockford Fosgate system), power windows and locks, and cruise control. The Spyder GT also featured alloy wheels, a rear spoiler, and fog lights. Optional extras included a power-operated retractable hardtop (a significant upgrade over the standard soft top), navigation system, and upgraded interior trim options. The interior design was generally considered functional and comfortable, though the materials used were not necessarily of the highest quality. The dashboard layout was straightforward and easy to use.
Chassis & Braking
The Eclipse Spyder IV utilized an independent McPherson strut suspension in the front and an independent multi-link suspension in the rear. This suspension setup aimed to provide a comfortable ride while maintaining reasonable handling characteristics. The Spyder GT featured larger diameter ventilated disc brakes in the front and solid disc brakes in the rear. Anti-lock braking system (ABS) was standard. The steering system was a rack-and-pinion setup with hydraulic power assist. The Spyder GT came equipped with 235/45 R18 tires, providing a good balance of grip and ride comfort. Stabilizer bars were present at both the front and rear to reduce body roll during cornering.
Market Reception & Comparison
The Eclipse Spyder GT was generally well-received by automotive critics, who praised its powerful engine and comfortable ride. However, the front-wheel-drive configuration and the somewhat lackluster automatic transmission were often cited as drawbacks. Compared to the base Eclipse models, the GT offered a significant performance upgrade, but it also came with a higher price tag. Against competitors like the Mazda MX-5 Miata, the Spyder GT offered more power and interior space, but lacked the Miata’s pure sports car handling. Fuel economy was rated at around 17 mpg city and 24 mpg highway, which was typical for a V6-powered convertible of its time. Reliability was generally considered average, with some reports of minor electrical issues and occasional transmission problems.
Legacy
The Mitsubishi Eclipse Spyder IV (4G) GT 3.8L V6 MIVEC Automatic represents the culmination of the Eclipse Spyder lineage. While the Eclipse nameplate continued for a short time as a hatchback, the convertible version was discontinued after 2009. Today, these vehicles can be found on the used car market at relatively affordable prices. The 6G75 engine is known for its durability, and well-maintained examples can still provide years of reliable service. However, potential buyers should be aware of the possibility of age-related issues, such as worn suspension components and potential transmission problems. The Spyder GT remains a popular choice for those seeking an affordable and stylish open-air driving experience, offering a unique blend of power, comfort, and retro appeal.
