Subaru Impreza WRX STI

The latest version of Subaru's venerable Impreza WRX STI features a striking new exterior that understates this cars very real performance credentials. With it's flared fenders and wider stance, the new five-door, all-wheel drive STI has a more aggressive look than the other, more sedate, Impreza's. The JDM spec version has a 2.0-liter horizontally opposed four-cylinder EJ20 engine with a single-scroll VF48 turbocharger paired with a six-speed manual transmission, this little rocket produces a whopping 308 ps. To plant all that power, Subaru utilizes a Driver Controlled Center Differential (DCCD) system, which claims to be the world's only hybrid mechanical/electronic limited-slip differential. Standard front seat mount, and front and rear curtain airbags offer occupant protection.

The 2008 STI has received a higher degree of parts to differentiate it from its Impreza WRX brethren. Unlike the Impreza WRX, the STI uses aluminum suspension components, is only available as a 5-door wagon, and has different fenders than that are 8" wider. The turbo forces air through a larger top-mount-intercooler which has lost the red "STI" that was on previous generations.
Currently, a Subaru WRX STI spec.C is in the works for production. It has been spotted lapping the Nurburgring. It is expected to shed 70 kg in weight, have minor engine tweaks, have an updated aero kit, and bigger brakes.

The precursor to the WRX STI spec.C has surfaced, named the Subaru Takumi concept. It was displayed at the MotorSport Japan 2008 auto show. The only visual cues to differentiate this car from the regular STI are a blacked-out rear spoiler, front lip spoiler, and 12-spoke wheels that are strikingly similar to the ones featured on the spec.C test mule spotted around the Nurburgring. The upgraded parts included on the car are drivetrain and suspension modifications. There is no word on performance figures or power output.

Symmetrical All-Wheeled Drive with Driver Controlled Center Differential (DCCD)
The multi-mode Driver’s Control Center Differential (DCCD) enables the driver to choose from different modes of control for the center differential. This feature allows the driver to enjoy handling and maneuvering as he desires, and it provides high levels of vehicle straight-line stability unique to the AWD configuration.
AUTO mode: The standard mode automatically controls the differentials under all kinds of driving conditions.
AUTO [+] mode: This mode is suited for driving on slippery or icy roads, which requires higher levels of road traction, achieved by elevating differential control.
AUTO [-] mode: This mode enables agile driving whereby the vehicle responds swiftly to steering by the driver.
MANUAL mode: This mode allows the driver to control the center differential manually.
6-speed manual transmission

SI-DRIVE performance management system
The SI (SUBARU Intelligent)-Drive system offers three different modes of driving for the driver to enjoy: Intelligent; Sport; and Sport Sharp. For example, when a driver continues to heavily depress the accelerator pedal in the Intelligent mode, engine output is automatically boosted to the level of maximum torque..

High performance sport-tuned suspension
Equipped with a strut-type front suspension and the newly designed double-wishbone rear suspension, and combined with its widened track, this model achieves outstanding cornering stability. Optimized suspension geometry settings with adjusted camber angles have made substantial improvements in road-hugging traction and riding comfort. Aluminum cast lower arms and a stabilizer bar in the front suspension help raise torsional and rolling rigidity, providing accurate response in steering.

Brembo performance brake system
The Brembo-made ventilated disk brake system employs an ultra-low expansion brake hose and tie rods for the brake booster. The brake system, coupled with the SuperSports ABS (antilock brake system) with EBD (electronic brake distribution), processes information fed from the G sensor, steering angle sensor, yaw rate sensor, and pressure sensor to deliver steady braking and control.

Vehicle Dynamic Control (VCD)
The multi-mode Vehicle Dynamics Control (VDC) also provides three different modes that the driver can choose from to experience a wider range of driving enjoyment, while always maintaining the safety features of VDC.
NORMAL mode: The standard mode controls ABS, TCS and VDC.
TRACTION mode: Adjusting both TCS and VDC, this mode extends the time period until the VDC kicks in. This mode is suited for sporty driving as it does not control torque-lowering in the engine.
OFF mode: This mode only controls ABS. It is used in emergencies like getting the vehicle out of deep snow or mud.

18 inch 5-spoke aluminium alloy wheels
Also available 18 inch BBS aluminium alloy wheels and foglights

Others
Standard features on the WRX STI include retractable headlight washers; an anti-theft alarm system and immobilizer; a hood damper; and a keyless entry system with a push-bottom starter.

Technical Data
Body Type	Hatchback	Engine Layout	4WD
Engine Type	2.0L EJ20 DOHC
Displacement	1994cc	Transmission	6 speed manual

Performance
Power	308 ps	Torque	422 Nm
0-100km/h	--	Fuel Consumption	--
Suspension (F)	Inverted strut type with aluminum alloy lower arm / Ventilated disc
Suspension (R)	Double wish-bone / Disc

Dimensions
Length	4415mm	Width	1795mm
Height	1475mm	Weight	1470kg
Wheelbase	2650mm	Turning Radius	5400mm

Features
2 Airbags	ABS	Traction control System
HID headlights	18" Sport rims	Vehicle Dynamics Control
DCCD	SI-DRIVE	STI flared bodykit

Subaru Impreza WRX STI TVC

 

Toshi Arai New Impreza WRX STI WRC Rally

 

Information
For general enquiries or to arrange for an appointment please call: 6749 3669