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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.

New BMW i3-like Visio.M EV concept uses lightweight resin

It's not a new version of the BMW i3, but an updated version of a lightweight concept car from SABIC, BMW, the Technical University of Munich, Daimler and others does bear a certain resemblance to the well-designed plug-in city car. From the black "glass" in the hatch to the angled line tail lights to the up-and-down window line, you can see a sort of family resemblance (see an i3 comparison photo here). And, of course, they both have an electric powertrain. But the changes made to the new lightweight urban electric concept vehicle is more of an exercise in what's possible rather than a way to evolve the i3 and i8 into a broader i family of vehicles. Even so, what we see here is interesting, since SABIC found all sorts of new ways to take weight out of the car as part of the Visio.M (Visionary Mobility) project, which was first announced in 2012. Let's start with the window material, which as you might guess from the quotation marks above, is not made of glass but is instead SABIC's Lexan polycarbonate (PC) resin plastic. The lower weight (the PC helps shed about 29 pounds) adds two miles of range while the PC resin has better thermal conductivity compared to glass and so does even more because the HVAC system can be more efficient. According to SABIC's computational fluid dynamics analysis, an extra 9-10 miles of range, in fact. Without the battery, this concept weighs just 992 pounds. Remember, BMW already made a lot of weight-reduction measures in the i3 thanks to carbon fiber reinforced plastic, so to make the "glass" lighter would only help boost efficiencies on a production vehicle that uses a resin like this. Read more below. SABIC's LEXAN™ resin delivers weight savings and thermal efficiency for new ultra-lightweight electric car concept developed by BMW-led Visio.M Consortium Munich, October 20, 2014 Today, at the Technical University of Munich (TUM), BMW, Daimler, TUM scientists and a consortium of industry participants showcased a lightweight urban electric concept vehicle with various advances, including an all-plastic design of the car's windows. The windows are made of LEXAN resin, a polycarbonate (PC) material, and coating technologies from SABIC, a leading developer of PC glazing for automotive windows and many other thermoplastic solutions for the automotive industry.

BMW's EV tech is being used to resurrect the Karma

Saying that luxury electric-vehicle manufacturer Fisker was beleaguered before its demise a few years back would be a gross understatement. But despite the cars self-immolating and Tesla CEO Elon Musk criticizing everything but the Karma's design, a Chinese auto parts manufacturer is resurrecting the brand under a different name: "Revero." That's according to a report from Wall Street Journal. Wanxiang Group is moving production to EV-hotbed California from Finland and will unveil its new ride either in July or August, but pricing hasn't been announced yet. The previous Karma sold for $100,000. Perhaps most interesting, though, is how it's going to address the reliability issues that plagued the company's predecessor. WSJ says that the automaker is licensing BMW's electric vehicle control and charging systems – a deal finalized last year. "There are huge, serious, major upgrades throughout the electronics systems, wiring, charging, battery," Karma's chief marketing officer Jim Taylor says. In terms of looks, though, it doesn't sound like you should expect anything to change in that department because the overhauls aren't going to be visible, according to Taylor. Wanxiang picked up Fisker's remains for $149 million a few years back. This deal is important, especially for BMW: If the German automaker's licensed tech can help Fisker outrun its smoky, checkered past, that's a high-profile win for everyone involved. Related Video: This article by Timothy J. Seppala originally ran on Engadget, the definitive guide to this connected life. News Source: Wall Street Journal Green BMW Fisker Electric Future Vehicles Special and Limited Editions Performance Sedan transportation gear karma revero