Carscoop spotted a prototype of an F34 3er GT built on the extended wheelbase of the F30 3 Sedan while testing in Nurburgring. Like the 5 Series GT, this car will also have a hatchback. It will feature a high belt line that completely wraps around the car, an additional quarter light and a wrap around tailgate, a retractable rear spoiler operated by small electric motors to prevent too save on weight, and a panoramic glass roof covering the roof almost completely. BMW 3 Series GT will come to market in March 2013 but expect a reveal in the following months.