BMW X6 M spied winter testing

While BMW has still not officially acknowledged an M-division model based on the X6 - unlike the X5 M which was treated to an official spy teaser - these images clearly show the model is definitely in development.

Trademark M-division features such as the side vents and quad-exhaust tips reveal the true identity of this not-so-mild-mannered X6 which is sure to be incredible.

The standard version is already a potent machine in both twin-forced six and eight guise, so an M-division variant should be simply staggering.

Current speculation suggests the prototype in these images is powered by BMW's 5.0-litre V10 engine which should develop over 378kW - almost identical to the engine found in the current M6.

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