The Impreza WRX STI offers superior driving performance befitting a sports model and is Subaru’s performance flagship. The Impreza WRX STI also offers high levels of safety thanks to the Horizontally-Opposed (Boxer) turbo engine serving as a core of the Symmetrical All-Wheel Drive (AWD) system with its excellent weight balance and a low centre of gravity.
Developed under the concept of “The Fastest WRX STI Ever”, the 2011 model has achieved even more advanced driving performance due to a finely tuned suspension. To attain such superior performance, the model underwent repeated testing at the Nurburgring track in Germany as well as in Japan, which served to refine the essential nature of the car as a true driver’s car that offers “total driving control” with a high level of cornering performance, secure and supreme sure handling, and overall vehicle stability.
Adopting the same wide body as the WRX STI, the Impreza WRX features wider tread and tire widths which, together with a finely tuned suspension, provide remarkable improvements to stability and road-holding performance when driving at high speeds. The 4-door and 5-door models have been thoroughly upgraded in terms of styling and driving performance for enhanced product appeal.
Source: Subaru Press Release