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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.

BMW X5 eDrive Concept is utilitarian plug-in hybrid

Bridging the gap between internal combustion engine-powered vehicles and electric vehicles are plug-in hybrids, and BMW has made one out of its biggest sports utility vehicle, even if it's just a concept car at this point. The plug-in hybrid X5 eDrive Concept debuted today at the Frankfurt Motor Show, and it sits attached to a charge port on the show floor.
As we reported in August, the X5 eDrive Concept combines a turbocharged four-cylinder engine of unknown output with a 95-horsepower electric motor, to achieve longer range and lower emissions. The X5 eDrive can drive up to 75 miles per hour and 19 miles on electric power alone, manage about 62 miles per gallon (3.8 liters per 100 kilometers) and accelerate from 0-62 mph in under seven seconds, according to BMW.
Three drive modes are offered: one that automatically operates the hybrid system, an all-electric mode and a Save Battery mode that operates the vehicle using the engine only.

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.