The last time we had news about the upcoming Fiesta ST was back in September 2010 when our spies snagged a three-door prototype in Germany. Now, we have some fresh pictures of the five-door version of the hottest Fiesta undergoing tests at the Nurburgring racetrack without much camouflage.

The only part of the car that is hidden is the front grille, presumably because the rest of the Fiesta is pretty much stock. The production model, however, should feature a bespoke aero kit comprising of different front and rear bumpers, side skirts and of course, a roof spoiler.

Ford’s new pocket rocket will feature a massaged chassis with a beefier braking system, sports suspension and tweaked steering wheel system for improved handling. What lies under the hood still remains a mystery but chances are it will either use Ford’s 1.6-liter turbocharged four-cylinder EcoBoost engine or (less likely) a 2.0-liter force-fed four. Either way, output should be in the 200-horsepower range.

The new sporty Ford Fiesta ST should make its premiere as a pre-production concept car at this fall’s Frankfurt Motor Show and launch sometime next year.

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