2004 Subaru Impreza WR1

2004 Subaru Impreza WR1

2004 Subaru Impreza WR1

Subaru has unveiled a special edition Impreza WRX STi to celebrate Petter Solberg winning the Driver’s Title in the 2003 World Rally Championship. On sale in the spring and limited to 500 units, the WR1, as it will be called, will feature a power upgrade to around 320 HP plus a host of technical and visual upgrades.

For example, the Impreza WR1 will feature a driver’s control centre-differential (DCCD) via a switch mounted next to the handbrake. It means the torque distribution between front and rear wheels can be manually selected. This allows the choice, for example, between a sharper cornering turn-in or more stable straight-line running. The system defaults to automatic mode whenever the ignition is restarted.

Externally, the new WR1 will be instantly recognisable thanks to its new Ice Blue Metallic paint plus driving lamps and a stainless steel mesh grille. Also new for the WR1 are special, Prodrive-developed uprated springs and bump-stops with a 25 mm lower ride-height.Other handling-enhancing features include 18 ins diameter P-FF7 (Prodrive Flow Forming seven-spoke) alloy wheels with Pirelli PZero tyres.

Interior changes include anthracite instead of blue suede-effect seats, a special gear knob, imaged carpet mats and a numbered tax disc holder.

Shared features with all Impreza WRX STi’s range from a six-speed gearbox to Brembo brakes and front and rear Suretrac differentials. WR1’s extra power and torque are achieved thanks to a revised engine control unit (ECU), high-flow catalyst and sports silencer.

Story by Subaru Limited, Edited by Supercars.net

In Detail

submitted byRichard Owen
price $$ 30 000 GBP
engineTurbocharged Flat-4
valvetrainDOHC, 4 Valves per Cyl w/AVCS Variable Valve Timing
fuel feedElectronic Injection
displacement2457 cc / 149.9 in³
bore99.5 mm / 3.92 in
stroke79 mm / 3.11 in
power238.6 kw / 320 bhp @ 5800 rpm
specific output130.24 bhp per litre
bhp/weight216.22 bhp per tonne
torque420 nm / 309.8 ft lbs @ 4000 rpm
body / frameUnit Steel w/Aluminum Hood
driven wheels4WD w/Driver Controlled Center Differential, SureTrac Front LSD,
front tires225/45R17 Bridgestone Potenza RE070
rear tires225/45R17 Bridgestone Potenza RE070
front brakesBrembro Vented Discs w/4-Piston Calipers, EBD, ABS
f brake sizex 323 mm / x 12.7 in
rear brakesBrembro Vented Discs w/2-Piston Calipers, EBD, ABS
r brake sizex 312 mm / x 12.3 in
front wheelsF 43.2 x 19.0 cm / 17.0 x 7.5 in
rear wheelsR 43.2 x 19.0 cm / 17 x 7.5 in
steeringRack & Pinion w/Variable Assist
f suspensionMacPherson Struts w/Lower L-Arms, Coil Springs, Tube Shocks, 20mm Anti-Roll Bar
r suspensionMacPherson Struts w/Lower L-Arms, Coil Springs, Tube Shocks, 20mm Anti-Roll Bar
curb weight1480 kg / 3263 lbs
wheelbase2540 mm / 100 in
front track1491 mm / 58.7 in
rear track1486 mm / 58.5 in
length4415 mm / 173.8 in
width1740 mm / 68.5 in
height1405 mm / 55.3 in
transmission6-Speed Manual
gear ratios3.636:1, 2.375:1, 1.761:1, 1.346:1, 0.971:1, 0.756:1, :1
final drive3.90:1
top speed~249.4 kph / 155.0 mph
0 – 60 mph~4.25 seconds
0 – 100 mph~10.67 seconds
0 – 1/4 mile~12.8 seconds