2003 Subaru Impreza WRX STi
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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.
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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 |
| 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 |
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