Common Name: Impreza
Model: Impreza WRX STi
Engine: Boxer 4 DOHC (EJ25)
Horsepower: 305 hp / 6000 rpm
Torque: 393.19 nm / 4000 rpm
Dimensions: 4415 mm x 1795 mm x 1475 mm
Wheelbase: 2625 mm
Weight: 1524 kg
Model Number: 11
Made In: China
Subaru has finally released detailed pictures of its range-topping new Impreza WRX STI which debuts at the 40th Tokyo Motor Show at the end of October. This follows the recent release of a moody studio shot which gave very little away apart from highlighting the turbocharged car’s substantially wider body. Developed by a dedicated team of performance-loving engineers, the new WRX STI features big blistered wheelarches for a ground-hugging stance. Technical details will remain under wraps until Subaru’s press conference on Wednesday, October 24 at 11.50 am at the Subaru Booth where President Ikuo Mori will make a presentation.
The new WRX STI was developed with the eternal theme and essence of the driver’s car, the total driving control, that the preceding WRX STI models also pursued. This AWD sports model gives maximum driving pleasure through its combination of power, performance, handling and ride capabilities thanks to engineering exclusively designed for the WRX STI and its five-door package. It also balances excellent safety and environmental aspects at a high level. Using a new five-door body style developed from the Impreza model, the new Impreza WRX STI displays a powerful design language that speaks directly to its performance credentials, integrating function and beauty. Adopting shortened front and rear overhangs, a longer wheelbase and widened body flares, the Impreza WRX STI clearly embodies driving performance in dynamic exterior design that delivers as overwhelming presence and beauty.
The new Horizontally-Opposed 2.0-liter four-cylinder turbo charged engine was developed exclusively for the new WRX STI. By further improving the basic performance of the engine, and mating it to SI-DRIVE (SUBARU Intelligent Drive), the WRX STI offers not only outright performance as might be expected, but also delivers excellent handling under extreme as well as normal driving conditions.
Featuring Subaru’s unique Symmetrical AWD and specially developed in-house 6-speed manual transmission as its base technologies, multi mode DCCD* and VDC**, which control traction and stability more precisely, have also been added to WRX STI. To complete its performance credentials, the evolved chassis by “Subaru Dynamic Chassis Control Concept” has dramatically improved road-hugging capability and will provide exhilaration and confidence in every driving situation.
The Impreza WRX gets a whole new redesign starting from mid-2007 as a 2008 model year. The engine used is still the EJ25. Peak power and torque as the same, but the peak power will output at 5200 rpm (400 rpm lower) and the peak torque delivery will be at 2800 rpm (800 rpm lower)with redline at 6500rpm. The 0-60mph time for the WRX is around 5.6- 5.8 seconds(depends on the source of information), like the predecessor, while decreasing the 50-70mph time due to the improved torque delivery. The transmission is similar to that of the previous models, only the ratios are slightly wider in the low gears with a final drive ratio of 3.9 instead of 3.7. The sedan version has a two exhaust outlets while the hatchback will have one exhaust outlet on the right. The car is based on a shortened Subaru Legacy platform. The front suspension uses a MacPherson strut setup while the rear is a new double wishbone suspension. The steering ratio will be 15:1. The hood is supported by hydraulic springs instead of a simple rod and hook mechanism. The interior has been updated to imitate the Subaru Tribeca SUV. A new chip computer with average fuel consumption is being introduced for the first time in the Impreza/WRX. The US-spec WRX reverts back to a 2-piston/1-piston sliding calipers (dropping the 4-piston/2-piston fixed caliper setup), but have grown by 0.1inch.in the front and 0.1-0.2inchin the rear with premium package. The calipers and rotor setup are the same found on the BL5-chassis US-spec Legacy 2.5GT and Spec B. The stock wheels are 17″ x 7″ on 205/50 R17 all season tires. The gas tank has grown from 15.9 gallons(60.2Liter) to 16.9 gal.(64Liter) The car’s weight has decreased to 3,142lb (1,425kg) for the 5 speed manual and 3,208lb (1,455kg) for the 4 speed automatic. The Impreza WRX was sold to the public starting July 2007 as a 2008 model year car in Canada, and was available in August 2007 in the United States. The 2008 Impreza WRC rally car is based on the hatch version of the car. Bluetooth connection is not available. The whole model range of the 2008 Impreza/WRX/STi does not come with sunroof/moonroof.