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Vorsteiner BMW M4 GTRS4 shows how to do a widebody at SEMA

Part of the joy of the SEMA Show is that all of the best tuners in the world are competing to show off their wares, and the challenge often pushes the companies into some absolutely insane directions. Case in point: Vorsteiner and its ludicrous GTRS4 wide body kit with the BMW M4.
According to Auto Evolution, the kit reportedly adds 4 inches in the front to fit 10.5-inch-wide wheels and a massive 7-inches more in the rear to snug in 13.5-inch-wide wheels, but spinning around the BMW in these images makes the changes look even more extreme. Beyond just the extra room in the fenders, the lower air intakes are ready to suck in huge volumes of cool air, and there's a front splitter to keep things planted. The front and rear extensions are joined by side sills that grow the farther back they go. Finally, at the rear, the M4 gets a reworked diffuser with mesh inserts.
This is just the type of automotive craziness that makes SEMA interesting. Take a lot at it for yourself in the gallery.

Rinspeed previews Budii concept ahead of Geneva show

Every year Frank Rinderknecht and his team at Rinspeed come to the Geneva Motor Show with another fantastical concept car, and next year's will be no exception. Though the show may still be several months away, the Swiss outfit is already giving us a glimpse of what to expect. Rinspeed's latest project is called the Budii, and it aims to "redefine the relationship between man and machine." As you might have guessed, that means driverless technology. Specific details at this point are limited, but the design calls for an electric vehicle with an adaptable cabin featuring drive-by-wire steering wheel. That wheel can swing out of the way to the center of the dashboard or to either side, should driver or passenger (as blurred as those rigid concepts become in this case) wish to take control. Beyond that we don't know much at this point, but the image above seems to indicate it'll be based on the BMW i3. Meanwhile the long list of partners and suppliers suggest it'll feature a design by Mansory, a Harman infotainment system and a Carl F. Bucherer analog clock embedded in the dynamic dashboard. 2015 Geneva Motor Show Rinspeed exhibits "Budii" at the 2015 Geneva Motor Show: "We need to redefine the relationship between man and machine" As far as Swiss automotive visionary Frank M. Rinderknecht is concerned, the breakneck speed of technical developments forces us to redefine our relationship with the automobile. The farsighted Swiss says: "Until now, what we have primarily associated with auto mobility was freedom and individuality. And - consciously or unconsciously - we are prepared to pay a high price in many regards for these privileges. We need only look at the accident statistics." Autonomous driving undoubtedly offers the opportunity to drastically diminish some of the drawbacks of private transport. For example, the number of traffic accidents could drop worldwide. But although it will be less prone to err than humans, even the best technology will not be perfect. "That is something we will have to accept," believes the boss of Rinspeed, the Swiss automotive powerhouse of ideas.

BMW i5 could get Toyota-sourced hydrogen power

It's starting to feel like the automotive landscape is right on the cusp of a boom in hydrogen-fueled vehicles. After all, the Toyota FCV is nearly ready, Volkswagen is readying a fuel cell concept for this week's Los Angeles Auto Show and Hyundai already sells its Tucson Fuel Cell. The next big name to add to that list might be BMW, as the company's co-development deal with Toyota starts to bear fruit.
According to Autocar, BMW may use a version of the fuel cell system from the Toyota FCV in the future i5. As part of its eco-oriented i sub-brand, the i5 is expected to be a stretched version of the i3 (pictured above) with extra rear legroom and cargo space. It's unclear at the moment whether a battery-powered pure electric powertrain will also be available. If accurate, then the rumor could give the Bavarian brand a counterattack against Mercedes-Benz' planned fuel cell vehicle in 2017.
BMW and Toyota first signed the memorandum of understanding to co-develop fuel cells, lightweight technology and a sports car back in 2012, and they made the arrangement official in late 2013. So far, few details on the progress of the work have been disclosed, but the performance model has been rumored to use a front-engine, all-wheel drive layout with supercapacitors.