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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 X4 Concept is no Shanghai surprise

"One in four new BMW cars is now a BMW SAV." If you're new to BMW parlance, SAV stands for Sports Activity Vehicle, a vehicle type most of us more commonly refer to as a crossover, and that statistic, which comes straight from the automaker itself, tells you all you need to know about why the X4 Concept you see above exists.
Like its larger X6 sibling, the BMW X4 Concept tries to shove a crossover in a mold shaped vaguely like a fastback coupe. Put another way, the X4 is likely to be a polarizing design, though perhaps not to the extent that the X6 divided opinions. As for us, we definitely prefer the styling of this X4 Concept, with its strong character lines and impressive wheel-to-bodyside ratio, over that of its bigger brother. That said, we're sure the AMC Eagle comparisons will begin in earnest starting right about... now.
Dimensionally, it seems the most obvious machine with which to compare this X4 Concept is the 3 Series Wagon - we're not sure if it will be as spacious inside as the 3 Series Gran Turismo. A two-inch stretch in the wheelbase ought to bring a commensurate improvement in legroom, and a body that's nearly five inches longer should be a boon for cargo capacity. Of course, that fastback roofline will surely cut down on the car's roominess inside, but we'll have to wait for the final production model to judge its true capabilities.

Thermal imagery of BMW M4 DTM pit stop is red hot

A pit stop is a pit stop, right? The race car pulls in, the crew changes the tires, pumps in some fuel, maybe swaps out a busted body panel or squeegees the windshield, and off it goes for another heat. Only pit stops have become the focus of news lately for a number of reasons, whether it's because of mishaps (like the ones that prompted F1 to ban mid-race refueling), new time records (due largely to said ban) or interesting new ways to film the fast-paced action.
A few weeks ago we brought you footage of an IndyCar pit stop filmed from multiple angles courtesy of Google Glass. Now BMW has released a brief clip of one of its M4 DTM racers coming in for fresh rubber, all filmed by infrared camera. Its the kind of technology BMW uses to help optimize its German touring cars for competition, and now the Bavarian outfit has released some footage for fans to enjoy.
The resulting thermal imagery gives you an idea of how hot the car runs (and where the heat is emanating from), how warm they get the fresh rubber before they get it onto the car, and what kind of temperatures the pit crew is subjected to. Look closely enough in the 25-second video below and you'll even see the heat sputtering out of the exhaust pipes as the M4 downshifts into its pit box. (Just don't try adjusting your speakers, the clip is without audio.)