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2013 Nissan GT-R and 2013 Alpina B6 mix it up on track and street

Here we have Autocar making an unforeseen comparison: the Nissan GT-R against the Alpina B6 at Brands Hatch and on public roads. Steve Sutcliffe clobbers the circuit in the 3,828-pound, all-wheel-drive sports car, then sees how well the 4,114-pound, rear-wheel drive grand tourer does against it.
Sutcliffe says there are quite a few similarities between the two cars, but that's really only on the spec sheet. The Nissan's got two turbos attached to its 3.8-liter V6, 542 horsepower and 465 pound-feet of torque. The Alpina's got two turbos attached to its 4.4-liter V8, 532 hp and 528 lb-ft. But one's brief is to be a monster on the track, the other on the boulevard, and if there's anything the video demonstrates, it's each car's focus.

BMW M4 sheds some camouflage for latest test run

Last time we saw the upcoming BMW M4 out testing, it was heavily clad with camouflage and decidedly homely looking (as most early development mules are). But in this latest set of photos, the M3 coupe successor has started to come into its own skin, and we're seeing a shape more closely akin to that of a rendering we brought you a few months back.
Unsurprisingly, the M4 coupe looks very similar to the 4 Series Concept that BMW debuted at the Detroit Auto Show earlier this year. And while non-M version of the 4er will likely look a bit more sedate, these spy shots clearly show an aggressive front fascia, large wheels and the usual quad-exhaust rounding out the rear end.
Naturally, the M3 sedan will launch before this M4 coupe (and convertible), and powertrain details are still unclear as of this writing. We understand that the current M3's naturally aspirated V8 will be axed in favor of some sort of turbocharged six-cylinder engine, and we've heard plenty of rumors as to what, exactly, it might be, but we have yet to hear any official confirmation.

BMW X3 spied with nip and tuck nearly complete

With the style-driven BMW X4 coming along in development, it looks like some of the forthcoming crossover's design could trickle over to its utilitarian sibling, the X3. Captured in these spy shots, it appears that the 2015 BMW X3 is preparing for a minor facelift, and from what we can tell, the biggest change will center on the CUV's headlights.
There is plenty of camouflage on the front and rear fascias to suggest updates will occur there, too, but we can definitely tell that the X3 will be getting LED-equipped headlights - at least as an option, anyway. The halos are slightly different from the current offering and there is also an LED strip above the headlights used as turn signal indicators. Another interesting thing we notice in these pictures is the nub at the bottom of the grille (also visible in recent X4 spy shots). While this could be some sort of test sensor for this prototype, it could also be a front-mounted camera for a possible parking assist system.
We don't expect any changes to the powertrain and we're not sure what updates could be in store for the interior, but we're guessing that that the 2015 X3 will debut shortly after the X4 goes on sale next year.