When our spy photographers spotted what appeared to be the next-generation BMW 5 Series Gran Turismo, it was reportedly going to be renamed as the 6 Series GT; here, to go with its newfound, sleeker roofline, the 6 GT has been spotted undergoing cold-weather testing clad in M Sport kit.

As with BMW’s latest crop of models, the upcoming 6 Series GT will be built upon the CLAR (Cluster Architecture) platform, which also forms the basis of the G30 5 Series, G11/12 7 Series, as well as the upcoming G20 3 Series.

As before, the M Sport treatment brings larger air intakes within the front bumper, along with more sculpted bumpers front and rear, and matching side skirts. In M Sport fashion, the 6 GT will come with sportier-looking, possibly larger M Sport wheels when the car makes its market debut.

Under the skin and given the platform commonalities, the 6 Series GT is expected to feature the 5 Series’ full gamut of powertrain configurations comprising four-, six- and eight-cylinder engines and an eight-speed automatic transmission, including all-wheel-drive xDrive.

Although, being a replacement for the 5 Series Gran Turismo, the 6 GT is likely to miss out on the full M Division treatment. In the case of the upcoming M5, the next super-sedan from Munich will take a leaf out of the Mercedes-AMG E 63 4Matic+‘s book in employing all-wheel-drive to effectively transmit its prodigious outputs to the road.