The F32 4 Series Coupe and F33 4 Series Convertible have finally shown one of its most important signature design elements (and on any BMW) - the kidney grilles!

As expected, the kidney grilles of the coupe are sportier (thinner, shapelier and wider) than that of the F30 3 Series sedan. A close look reveals a different number of slats and differing designs for the grilles on each side - 11 flatter slats on the driver side versus 9 ‘kinked’ slats on the passenger side. We are likely looking at the separate grille designs for the different ‘lines’ that the F32 and F33 will be offered in (just like the F30 sedan). The closeup image of the hood and front end also reveals extra camouflage panels on … CONTINUED

A couple of 2014 X5 (F15) prototypes flashed their grilles for the first time during one recent test run and our quick acting spies managed to capture it before their camouflage were reattached.

As we’ve reported previously, the grilles are indeed larger, wider, and bolder than those on the current X5. It retains the 7 slat design, but the grilles now dominate more of the front fascia and has a much thicker grille surround than the current X5 - see the comparison image below.

The hoodline has been moved to above the kidney grilles and taking up recent design cues a la F30 3 series, the headlights will connect with the kidney grilles. Although the headlight shape is still obscured by the camouflage on this prototype, we’ve … CONTINUED

We’ve just spied the next generation BMW X5 M prototype beginning its testing! Although still clad in full camouflage, signature M features leave no doubt that we are looking at the next X5 M.

The most conspicuous items are the quad M exhausts, active differential and blue brake calipers, which have become the signature color for M model brakes (i.e. F10 M5 and F12/F13 M6). Seen behind the blue M brakes are drilled rotors, the first for any X5 model. Hiding behind the front end camouflage are huge air intakes and we get a very clear look at how the headlights will connect to the kidney grilles, in the same fashion as on the F30 3 Series.

This prototype comes just 6 months after the regular F15 X5 … CONTINUED

A mystery BMW model appeared at the BMW Museum a bit over a month ago, shrouded under a big blue tarp. It’s yet to be positively identified, but could this possibly be the next generation F80 M3 sedan or F82 M4 coupe?

There’s not much to go off of by way of the sparse photos, but the one part of the car that can be partially seen - the wheels, happen to match the wheels that have been spotted on the F80 M3 sedan prototypes from our spy photos.

It’s premature for any F80 M3 concept to be shown, much less an F82 M4 coupe (the F32 4 series coupe upon which the M4 will be based has not even debuted yet), but is it just our hopeful … CONTINUED

We bring you the first video of the F34 3 Series Gran Turismo (GT) in action. 335i prototypes were spotted on and around the Nurburgring as it recently began its performance testing at the Ring.

The 3 Series GT is being tested concurrently with the other future F3x variants - the F32 coupe and F33 convertible.

The overall apperance of the 3 series GT will follow the 5 Series GT in having some independent styling from the other 3 series variants. Unlike the 5 Series GT however, it will feature a simple hatch design/function rather than the twin trunk arrangement. It should also have sportier styling and driving intentions than the 5 Series GT, which its retractable spoiler seems to be a sign of.

Expect the 3 Series Gran … CONTINUED

We spotted the upcoming 3 series GT (Gran Turismo) out on the highway recently. As you can see, it had its retractable spoiler extended while at speed.

Expect the 3 Series Gran Turismo F34 to debut sometime in 2013 and in both gasoline and diesel models.

Catch more spy photos @ http://www.bimmerpost.com/spyshots/

We recently posted the first photos of the F32 4 Series Coupe hitting the Nurburgring for high performance testing, and we’ve now also added a live video of the prototypes in action.

The recently revealed 2013 F31 3 Series touring is set to make its world public debut this week at the 2012 AMI (Auto Mobil International) auto show in Leipzig, Germany 2012.

And although we’ve already posted some great looks at the F31 M Sport test mules, we’re hoping to see the M Sport model fully revealed at the AMI show. Whether it does or not however, here is a first look at a beautiful fully revealed production F31 3 Series touring with M Sport package, in Estoril Blue II.

For details on the F30/F31 M Sport package, see our M Sport Guide.

We first began spying the next generation BMW X5 (F15) in January during its cold climate testing. BMW has now ratcheted up testing of the F15 X5 and moved to the Nurburgring to begin some serious track testing.

The F15 X5 is expected to weigh less than the current E70 X5 and ride on a modified version of the F10 5 series chassis. Expect both diesel and gasoline 6-cylinder and 8-cylinder engine options. It should be introduced in late 2013 - early 2014 as a 2014 model year X5.

To here’s a recap of what we know about the 2014 X5 so far (with a reposting of the associated spy photos from our earlier coverage).

SIZE, SHAPE, STYLING

Judging by what has been previously spied, the X5 retains its muscular … CONTINUED