| Type | 4-door, 5-passenger compact sedan |
| 4-door, 5-passenger compact wagon | |
| Layout | Front engine/all-wheel drive |
| Engine | 2.5-litre boxer 4, SOHC, 16 valves |
| 2.5-litre boxer 4, DOHC, 16 valves, turbocharged | |
| Horsepower | 170 @ 6000 rpm |
| 265 @ 6000 rpm (WRX) | |
| 305 @ 6000 rpm (STI) | |
| Torque (lb-ft) | 170 @ 4400 rpm |
| 244 @ 4000 rpm (WRX) | |
| 290 @ 4000 rpm (STI) | |
| Transmission | 5-speed manual/6-speed manual (4- |
| speed automatic optional) | |
| Tires 2.5i, Sport | P205/55R16 all-season |
| Tires 2.5i Limited | P205/50R17 all-season |
| Tires WRX | P225/45R17 summer performance |
| Tires WRX STI | P245/40R18 summer performance |
| Curb weight 2.5i | 1390 kg (3064 lbs)(M/T) |
| 1420 kg (3130 lbs)(A/T) | |
| Curb weight 2.5i Sport | 1415 kg (3119 lbs)(M/T) |
| 1445 kg (3185 lbs)(A/T) | |
| Curb weight WRX | 1440 kg (3174 lbs) |
| Curb weight WRX STI | 1530 kg (3373 lbs) |
| Curb weight WRX STI Sport Tech | 1545 kg (3406 lbs) |
| Wheelbase | 2620 mm (103.1 in.) |
| Length sedan | 4580 mm (180.3 in.) |
| Length hatchback | 4415 mm (173.8 in.) |
| Width | 1740 mm (68.5 in.)(w/out mirrors) |
| 1976 mm (77.7 in.)(w/mirrors) | |
| Width WRX STI | 1795 mm (70.6 in.)(w/out mirrors) |
| 1982 mm (78.0 in.)(w/mirrors) | |
| Height | 1475 mm (58.0 in.) |
| Ground clearance | 155 mm (6.1 in.) |
| Cargo capacity sedan | 320 litres (11.2 cu. ft.) |
| Cargo capacity wagon | 538 litres (18.9 cu. ft.)(seats up) |
| 1257 litres (44.3 cu. ft.)(seats down) | |
| Fuel consumption 2.5 M/T | City: 10.6 L/100 km (27 mpg Imp) |
| Hwy: 7.5 L/100 km (38 mpg Imp) | |
| Fuel consumption 2.5 A/T | City: 10.4 L/100 km (27 mpg Imp) |
| Hwy: 7.7 L/100 km (37 mpg Imp) | |
| Fuel consumption WRX | City: 11.3 L/100 km (25 mpg Imp) |
| Hwy: 8.1 L/100 km (35 mpg Imp) | |
| Fuel consumption WRX STI | City: 12.2 L/100 km (23 mpg Imp) |
| Hwy: 8.7 L/100 km (33 mpg Imp) | |
| Fuel type | Regular (2.5i) |
| Premium (WRX) | |
| Premium (WRX STI) | |
| Warranty | 3 yrs/ 60,000 km |
| Powertrain warranty | 5 yrs/100,000 km |
| Side airbags | Standard |
| Curtain airbags | Standard |
| Anti-lock brakes | Standard |
| Traction control | Standard |
| Stability control | Standard |
| Assembly location | Yajima, Japan |

