#TouringCar

Volvo has purchased Swedish high-performance tuner Polestar, the automaker announced Tuesday. The company will own and operate Polestar as an in-house performance division much like Ford’s SVT division or Subaru’s STI group (anything other than another Mercedes-AMG or BMW M Division reference).

You could be forgiven for thinking Volvo owned Polestar already — the Swedish automaker already exclusively contracted with the Swedish tuner in 2013 to produce the V60 and S60 Polestar editions and the two have worked together since the 1990s.

Volvo said in the medium-term it would double output of Polestar branded cars — which could mean more than 80 sedans and 40 wagons a year coming to the United States.

Chances are you probably won’t see this Golf in the Volkswagen showroom anytime soon. Volkswagen Motorsport rolled out its race-tuned Golf on Thursday, built to compete in the Touringcar Racer International Series.

The 2.0-liter turbocharged four, which has been tuned to 330 horsepower and 302 pound-feet of torque, is mated to a six-speed, dual-clutch automatic transmission and is front-wheel drive.

The huge rear wing, front air dam and side skirts obviously add 15 percent more go-fast.

“Former Stig Ben Collins endured a difficult debut in the Dunlop MSA British Touring Car Championship during the final rounds of the 2010 season at Brands Hatch.”

What have we learned from this?