BMW is obviously finishing up development and testing of the next-generation BMW M5 as these latest spy shots show the car in its most revealing guise yet.

BMW M5

So far we know the new M5 will feature a 4.4-litre twin-scroll (TwinPower) twin-turbo V8 producing a reported 425kW of power and 718Nm of torque. The new car is also said to be fitted with a seven-speed dual-clutch M transmission with Drivelogic and stop/start technology.

Early videos of a test mule showed a manual transmission could be available, but now international word is that a manual type will only be available to the US - although official confirmation is yet to be announced.

Not much more can be revealed of the new model as we've already been shown the concept version and loads of spy shots showing plenty of detail. These new shots to come through do show the car in a new colour though, a metallic bronze/brown.

Other highlights uncovered in these images are the side gills or vents behind the front wheel arches. M cars have traditionally featured these gill-style vents since the E46 M3 of 2001 and the BMW Z3 M. On the M5 the vents appear to be outlined in chrome to match the door handles and window trims, similar to the concept version.

Forum members from M5board recently captured the new car's interior and engine bay, showing carbon fibre shift paddles behind the steering wheel and a complex intercooler setup under the bonnet.

The car is sure to please fans upon its release next year, especially if the car performs like it did in the recent pre-production testing video released by BMW. Like all M cars it will feature performance-oriented suspension, steering, brakes and various visual highlights and 'M' logos which will set it apart from the normal 5 Series.

The production 2012 BMW M5 is set to be unveiled at this year's Frankfurt Motor Show in September. We look forward to providing all the coverage of the unveiling and a full review as soon as possible.

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