The latest round of spy photos featuring the 2011 BMW M5 show a car with sculpted door panels and sidesills uncovered by padding.  The kidney-grilled car was spotted in Scadinavia during traction control tests on snow and ice.

As seen in previous spy photos, we get a glimpse of the car's kidney grilles and rear LED lighting.  Although the front bumper fascia is covered, previous spy photos have shown the shape of the bumper during Nurburgring testing.

Using a 578-horsepower 4.4-liter bi-turbo V8 engine producing 531 ft-lb of torque, the new M5 is expected to reach 100 km/h in 4.4 seconds.  That time is roughly 0.3 seconds faster than the current E60 M5 model.

The new M5 could feature an offshoot of the kinetic energy recovery system developed by BMW's F1 team.  This, in part, will help improve fuel efficiency by 30% to 24 mpg.

BMW is expected to introduce the 2011 BMW M5 by the end of the year, putting the car on the market in spring 2011. Reports place an M5 concept at the Geneva Motor Show in March.

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