The Subaru Impreza Coupe (GFC) 2.5, produced between 1998 and 2000, represented a sporty and capable offering within the first generation (GC/GF) Impreza lineup. Positioned as a more driver-focused alternative to the sedan, the coupe distinguished itself with its two-door configuration and, in this particular variant, a 2.5-liter naturally aspirated boxer engine producing 167 horsepower. This model played a significant role in establishing the Impreza’s reputation for all-wheel-drive performance and rally-inspired handling in the North American market, where it was a popular choice for enthusiasts seeking a practical yet engaging vehicle.
Technical Specifications
| Brand | Subaru |
| Model | Impreza |
| Generation | Impreza I Coupe (GFC) |
| Type (Engine) | 2.5 (167 Hp) 4WD |
| Start of production | 1998 |
| End of production | 2000 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 10.7 l/100 km (22 US mpg, 26.4 UK mpg, 9.3 km/l) |
| Fuel consumption (extra urban) | 8.4 l/100 km (28 US mpg, 33.6 UK mpg, 11.9 km/l) |
| Fuel consumption (combined) | 9.3 l/100 km (25.3 US mpg, 30.4 UK mpg, 10.8 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.3 sec |
| Acceleration 0 – 62 mph | 8.3 sec |
| Acceleration 0 – 60 mph | 7.9 sec |
| Maximum speed | 200 km/h (124.27 mph) |
| Weight-to-power ratio | 7.8 kg/Hp, 129 Hp/tonne |
| Weight-to-torque ratio | 5.8 kg/Nm, 173.7 Nm/tonne |
| Power | 167 Hp @ 5600 rpm |
| Power per litre | 68 Hp/l |
| Torque | 225 Nm @ 4000 rpm (165.95 lb.-ft. @ 4000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | EJ25 |
| Engine displacement | 2457 cm3 (149.94 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Boxer |
| Cylinder Bore | 99.5 mm (3.92 in.) |
| Piston Stroke | 79 mm (3.11 in.) |
| Compression ratio | 9.7:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHC |
| Engine oil capacity | 4 l (4.23 US qt | 3.52 UK qt) |
| Kerb Weight | 1295 kg (2854.99 lbs.) |
| Max. weight | 1700 kg (3747.86 lbs.) |
| Max load | 405 kg (892.87 lbs.) |
| Trunk (boot) space – minimum | 314 l (11.09 cu. ft.) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Length | 4374 mm (172.2 in.) |
| Width | 1704 mm (67.09 in.) |
| Height | 1410 mm (55.51 in.) |
| Wheelbase | 2520 mm (99.21 in.) |
| Front track | 1470 mm (57.87 in.) |
| Rear (Back) track | 1450 mm (57.09 in.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 5 gears, manual transmission |
| Front suspension | Transverse stabilizer |
| Rear suspension | Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 205/55 R16 |
| Wheel rims size | 7J x 16 |
Powertrain & Engine Architecture
The heart of the Impreza Coupe 2.5 was the EJ25 engine, a 2.5-liter horizontally opposed (boxer) four-cylinder. This engine configuration, a Subaru hallmark, provided a low center of gravity, contributing to the car’s balanced handling. The EJ25 featured a single overhead camshaft (SOHC) design and multi-port fuel injection. The 9.7:1 compression ratio was a compromise between performance and the ability to run on readily available gasoline grades. The engine produced 167 horsepower at 5600 rpm and 166 lb-ft of torque at 4000 rpm. This power was delivered to all four wheels through a standard five-speed manual transmission. The transmission was chosen to complement the sporty nature of the coupe, offering precise shifts and driver control. While an automatic transmission was available on other Impreza models, it wasn’t offered with the 2.5L engine.
Driving Characteristics
The 2.5-liter engine, coupled with the all-wheel-drive system, provided the Impreza Coupe with confident grip and respectable acceleration. The 0-60 mph time of around 7.9 seconds was competitive for its class in the late 1990s. The boxer engine’s unique firing order contributed to a distinctive exhaust note and a smooth power delivery. Compared to the turbocharged Impreza WRX models, the 2.5 offered a more linear powerband, making it easier to drive in everyday situations. However, it lacked the outright punch and responsiveness of the turbo variants. The all-wheel-drive system provided excellent traction in various weather conditions, enhancing both safety and driving enjoyment. The manual transmission’s gear ratios were well-matched to the engine’s characteristics, allowing for spirited driving on winding roads.
Equipment & Trim Levels
The Impreza Coupe 2.5 typically came with a fairly comprehensive list of standard features for its price point. These included power windows, power locks, and air conditioning. Interior upholstery was typically cloth, with a functional and straightforward dashboard layout. Optional extras included a sunroof, upgraded audio systems, and alloy wheels. The trim level was generally positioned as a step up from the base Impreza models, offering a more refined interior and a more powerful engine. It wasn’t a luxury trim, but it provided a good balance of features and performance.
Chassis & Braking
The Impreza Coupe utilized a MacPherson strut front suspension and a double-wishbone rear suspension, both incorporating stabilizer bars to reduce body roll. The front brakes were ventilated discs, providing ample stopping power, while the rear brakes were drums. This combination was adequate for the car’s weight and performance capabilities. The all-wheel-drive system employed a viscous limited-slip center differential, distributing power between the front and rear axles as needed. The steering was rack-and-pinion with hydraulic power assistance, offering precise and responsive handling.
Market Reception & Comparison
The Impreza Coupe 2.5 was generally well-received by automotive critics. It was praised for its handling, all-wheel-drive system, and relatively spacious interior for a coupe. However, some reviewers noted that the engine, while adequate, lacked the excitement of the turbocharged WRX models. Fuel economy was considered average for its class, with combined figures around 25 mpg. Compared to other coupes in the same price range, such as the Honda Civic Coupe or the Nissan 200SX, the Impreza offered the unique advantage of all-wheel drive, making it a compelling choice for drivers in regions with inclement weather.
Legacy
The Subaru Impreza Coupe 2.5, while not as iconic as the WRX variants, remains a fondly remembered vehicle among enthusiasts. The EJ25 engine, while not known for being particularly high-strung, is generally considered reliable with proper maintenance. Common issues include oil leaks and occasional head gasket failures, typical for older Subaru engines. Today, well-maintained examples of the Impreza Coupe 2.5 are becoming increasingly collectible, appealing to those seeking a unique and capable classic car with a rally-inspired pedigree. The car’s enduring appeal lies in its blend of practicality, performance, and all-weather capability.
