The STi is powered by a tuned version of the 2.5-litre boxer engine, turbocharged to produce more than 300bhp and around 400Nm of torque.

Red-zone racer

We have brought you photos before, but now we can finally let you enjoy the sounds of the upcoming Subaru Impreza WRX Sti, set for an October debut at the Tokyo Motor Show. But first at Frankfurt, the Subaru WRC Concept which is based on this very car.

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