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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.)

BMW M4 Coupe laps 'Ring in 7:52, bests outgoing M3

Comparing Nürburgring Nordschleife lap times is a bit of a black art, especially when looking at times officially set by manufacturers matched against other sources. Driver skill and weather conditions play a huge roll in determining a quality time. Still, it appears BMW fans have reason to celebrate because the new M4 Coupe beat the previous-generation M3 by 13 seconds in a recent test by Germany's Sport Auto magazine.
Sport Auto conducts what it calls the Supertest, where it runs performance cars around the 'Ring and the short course at Hockenheim to create its own database of comparable times. The M4 with a dual-clutch transmission, ceramic brakes and Michelin Pilot Supersport tires managed a quality 7 minutes 52 second lap around the 12.8-mile course, compared to 8:05 from the last M3, according to BimmerPost. The new coupe also beat the magazine's posted times for the Audi RS5 Coupe, which did it in 7:59, and Mercedes-Benz C63 AMG with an 8:01, but couldn't quite match the 7:44 set by a 911 Carrera S. Still, BMW must be somewhat pleased with these results of its new 425-horsepower coupe because it posted the magazine's cover and an image of the time on its official M Facebook page.
While the M4 apparently stands up to contemporaries and predecessors, new generations of the AMG and RS models are reportedly on the horizon. In other words, more tests will come.

2014 BMW M5 facelift shows up online

Is it that time already? Like its predecessors, the current BMW M5 has been endangering US licenses since it first went on sale here in 2012, but its design became a known quantity back at the 2011 Frankfurt Motor Show. Apparently that also means that the F10 generation has already grown tired enough to the "Must Have Latest Set" who can afford these sorts of super saloons that a facelift is in order.
If these leaked images sourced from Autocar are anything to go by, BMW stylists have used a predictably light hand to rework their hottest 5 Series, with a revised grille that echoes the M6 along with modestly resculpted headlamps. The rear end appears wholly unaltered. Interior changes gleaned from a look at the cabin photos include an updated touchpad-equipped iDrive controller and a new steering wheel cribbed from the M6.
No new word on changes to the 4.4-liter, twin-turbo V8 powertrain, but in late April, we heard that BMW was readying new competition packages for the M5 and M6. The packages are said to include 15 more horsepower, revised suspension and steering, along with new wheels and blackened exhaust tips. Given that BMW is known for habitually underrating its cars' horsepower outputs (particularly its M models) we can't help but wonder if its engineers will need to do anything other than wave a magic wand to corral those extra ponies underhood...