Story updated 12/23/14 with newest photos.
Testing on the second generation BMW X5 M continues while the prototypes shed some camouflage. This is the first red F85 X5 M we've seen and as with earlier prototypes, it wears the signature M components - huge front air intakes, more aggressive sideskirts and rear diffuser, blue M brakes, and cross drilled rotors (the first for any X5 model). We also have a better look at the quad exhaust pipes which, unlike the current X5 M, feature a slanted angled design (same as the upcoming M3 and M4).
We now see double-slatted kidney grilles fitted to the X5 M prototype for first time. This has become another signature M styling bit for the latest M models, including the M5 LCI facelift, M6 and the upcoming M3/M4. The side mirrors remain heavily camouflaged and what lies beneath may somewhat resemble the M4 mirrors, with a top prong extending close to, but not attached to the A-pillar. At least that's what the photos suggest.
The one styling feature which isn't apparent from the photos however, are the usual side M gills like the ones on the current X5 M. The only visible embellishment on the front fenders appear to be air breather vents, much like on the standard models. It remains to be seen whether the vents will feature a more stylized design than the versions on the regular X5.
The X5 M is expected to weigh in a bit less than the current X5 M, yet it will feature more power by way of the S63Tu engine from the new M5/M6. Exact power is not yet known, but it's likely to uprated from the 560hp in the M5/M6.
Deliveries should begin around the Summer of 2014.
And our older spy video for some live action fun: