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Check out the trick way you access the tire valve on this BMW Alpina B6

The wheels are one of the first things you notice when checking out the 2015 BMW Alpina B6 xDrive Gran Coupe. The 20-inch aluminum alloy rollers have 21 spokes that spray out from their hubs, creating one of Alpina's signature design features. But there's also plenty of function to go along with the stylistic form of this hotted-up BMW 6 Series Gran Coupe.
By rotating the Alpina roundel and unlocking the center hub, you gain access to the tire valve and bolts, which are hidden inside. They're literally kept under lock and key, and they protect your Alpina's wheels from the elements and theft. This unique center-fill system employing a hollow spoke isn't a new setup for the favored BMW tuner, but since Autoblog had one in our offices this week, we thought we'd take the opportunity to show the unique mechanism in case you haven't seen it before. Check it out in our brief video below.

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.

Are you the 2016 BMW M2?

From the looks of these spy shots, BMW is back testing the hotter version of the M235i, the M2. We first brought you pictures of the lightly disguised coupe a few weeks back. While those original shots were on the road, it would seem that BMW has transitioned its testing to the Nürburgring.
Here, we get a better look at the M2 prototype's M-spec wheels. This particular car is missing the traditional quadruple exhausts that serve as an easy identifier for BMW M products, although our spies report that the tips, along with a more assertive front fascia, will arrive when the M2 makes its production debut.
We can't yet confirm any powertrain details, but previous rumors had the M2 getting its go from a tuned version of the brand's N55 turbocharged inline-six. Take a look up top for this latest round of spy photos of the BMW M2.