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Looking back at 84 years of BMW roadsters

Today BMW is a top player in the luxury vehicle market, but it wasn't always so. With origins as an airplane engine builder early in the 20th Century, it broke into the automotive industry when it bought Automobilwerk Eisenach in 1928. That German manufacturer was licensed to build the Austin Seven under the name Dixi DA-1, which could be had in a roadster body style. In 1929, BMW dropped the Dixi name, and by 1936, it was building a car it designed in-house, the 326 sedan. That was followed by the company's first roadster of its own design, the swoopy two-door 327 of 1937.
XCAR picks up there, and gives a history of BMW's iconic roadsters starting with the 327, ending with today's Z4, and covering everything in between - including the beautiful post-war 507 of 1957 and the funky, plastic-bodied 1989 Z1.
The video, which we've included below, is a good history lesson and a great chance to see a bunch of classic BMWs, spanning 84 years, all driven back to back within the safe confines of a racetrack. When you have a spare 20 minutes, go ahead and take some time to watch it.

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.)

2015 BMW X6 keeps it weird

Say what you will about the BMW X6 - odd and ugly as it may be, it's actually been sort of successful for the German automaker. BMW has now sold some 250,000 examples of the X6 since its launch, and the company's fastback-crossover-coupe-whatever-thing gets a host of meaningful updates for the 2015 model year while not straying from its original mission.
Aside from its revised styling, most noticeably set apart by its larger, X5-inspired headlamps, the biggest update for the US-spec X6 is the addition of a rear-wheel-drive model, the sDrive35i. This trim joins the all-wheel-drive xDrive35i and xDrive50i, and since you should all be capable of decoding BMW's weird naming structure by now, you know this means the X6 will be offered with a choice of 3.0-liter turbocharged six-cylinder and twin-turbo 4.4-liter V8 engines. Fuel economy figures have not been released yet, but BMW says the new powertrains are more efficient than before, mated exclusively to an eight-speed automatic transmission regardless of cylinder count.
Look for the updated X6 to hit US showrooms this fall, following its debut this week in Paris. Expect pricing to be revealed closer to the model's on-sale date. Have a look below for all of the details.