2003 Subaru Impreza WRX STi
Subaru’s strikingly restyled Impreza made its world debut at the Paris Motor Show on 26 September, 2003. The facelift is shared with the 2003 World Rally Car which will benefit from a similar reduction in drag coefficient and improved high-speed stability. Key design changes include a new front bumper, spoiler, bonnet, wings and headlamps.
The WRX STi gains a larger high-rise rear spoiler, front corner spoilers and new side sill spoilers which all contribute to improved high-speed stability. Meanwhile, a larger bonnet air intake enhances intercooler cooling. The STi also has improved front suspension thanks to strengthened mounts for the transverse linkages and new cross-performance rods. As a result, handling and steering response are even better thanks to a reduction in geometry change during hard cornering.
In Detail
| submitted by | Richard Owen |
| production | 500 |
| price $ | $30 000 USD |
| engine | Turbocharged Flat-4 |
| position | Front |
| aspiration | Turbocharged |
| valvetrain | DOHC, 4 Valves per Cyl w/AVCS Variable Valve Timing |
| fuel feed | Electronic Injection |
| displacement | 2457 cc / 149.9 in³ |
| bore | 99.5 mm / 3.92 in |
| stroke | 79 mm / 3.11 in |
| compression | 8.2:1 |
| power | 223.7 kw / 300.0 bhp @ 6000 rpm |
| specific output | 122.1 bhp per litre |
| bhp/weight | 202.7 bhp per tonne |
| torque | 406.75 nm / 300 ft lbs @ 4000 rpm |
| redline | 7000 |
| body / frame | Unit Steel w/Aluminum Hood |
| driven wheels | 4WD w/Driver Controlled Center Differential, SureTrac Front LSD, |
| front tires | 225/45R17 Bridgestone Potenza RE070 |
| rear tires | 225/45R17 Bridgestone Potenza RE070 |
| front brakes | Brembro Vented Discs w/4-Piston Calipers, EBD, ABS |
| f brake size | x 323 mm / x 12.7 in |
| rear brakes | Brembro Vented Discs w/2-Piston Calipers, EBD, ABS |
| r brake size | x 312 mm / x 12.3 in |
| front wheels | F 43.2 x 19.0 cm / 17.0 x 7.5 in |
| rear wheels | R 43.2 x 19.0 cm / 17 x 7.5 in |
| steering | Rack & Pinion w/Variable Assist |
| f suspension | MacPherson Struts w/Lower L-Arms, Coil Springs, Tube Shocks, 20mm Anti-Roll Bar |
| r suspension | MacPherson Struts w/Lower L-Arms, Coil Springs, Tube Shocks, 20mm Anti-Roll Bar |
| curb weight | 1480 kg / 3263 lbs |
| wheelbase | 2540 mm / 100 in |
| front track | 1491 mm / 58.7 in |
| rear track | 1486 mm / 58.5 in |
| length | 4415 mm / 173.8 in |
| width | 1740 mm / 68.5 in |
| height | 1430 mm / 56.3 in |
| transmission | 6-Speed Manual |
| gear ratios | 3.636:1, 2.375:1, 1.761:1, 1.346:1, 0.971:1, 0.756:1, :1 |
| final drive | 3.90:1 |
| top speed | ~249.4 kph / 155.0 mph |
| 0 – 60 mph | ~4.8 seconds |
| 0 – 100 mph | ~12.6 seconds |
| 0 – 1/4 mile | ~13.3 seconds |
