A prototype of the upcoming 2015 Mercedes-Benz CLA Shooting Brake has been spied undergoing cold weather testing ahead of a launch expected several months from now.

A prototype of the upcoming 2015 Mercedes-Benz CLA Shooting Brake has been spied undergoing cold weather testing ahead of a launch expected several months from now.

Looking a lot like a downsized CLS Shooting Brake, the more practical CLA is destined to those who like the four-door coupe version but are in need of more cargo area without having a negative impact on the design. These close-up spy photos show the car's boot isn't as wide as some have expected so owners might have some problems inserting more voluminous baggage.

Engine lineup will likely be borrowed from the A/CLA/GLA trio and could be topped by a 4-cylinder 2.0-liter turbocharged gasoline engine delivering an impressive 360 HP (265 kW) and 450 Nm (332 lb-ft) which could end up powering the CLA 45 AMG Shooting Brake.

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2015 Mercedes-Benz CLA Shooting Brake returns in fresh spy photos