The BMW 3-Series Plug-in Hybrid has been spied undergoing cold weather testing in Scandinavia.

The BMW 3-Series Plug-in Hybrid has been spied undergoing cold weather testing in Scandinavia.

Looking virtually identical to the standard model, the plug-in hybrid is distinguished by a small charging port cover that resides on the driver side front fender.

There's no word on what will power the car but the company recently displayed an X5 eDrive concept which had a plug-in hybrid powertrain that consisted of a TwinPower Turbo four-cylinder engine, a 95 HP (70 kW) electric motor and a lithium-ion battery. It enabled the model to accelerate from 0-100 km/h in less than seven seconds,average 3.8 L/100km (61.8 mpg US / 74.3 mpg UK) and travel up to 30 km (19 miles) on electricity alone.

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BMW 3-Series Plug-in Hybrid spied cold weather testing