Subaru releases third teaser image of STI Impreza

Subaru has released another official teaser image of its STI version of the Impreza WRX. Although Subaru didn't release any details with the image, the picture gives us an overall impression of the car's styling. The car features a predominant hood scoop and larger fenders, a new front bumper that incorporates fog lights and air vents and quad-exhaust.

Sources say the STI will use a 300 horsepower turbocharged boxer engine -- said to displace 2.5L in the U.S. and 2.0L in Japan and Europe -- but it remains unclear if Subaru will offer a dual-clutch gearbox.

Although Subaru showed a WRC version of the Impreza at this year's Frankfurt Motor Show, the road-going STI won't be unveiled until this month's Tokyo Motor Show. Check back for official details.