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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.

Can the government mechanically force you to wear your seatbelt? [w/poll]

The National Highway Traffic Administration is considering the use of ignition interlocks in vehicles that would require the seatbelts of occupied seats to be fastened in order to drive the car, Automotive News reports, four decades after Congress moved to prevent manufacturers from installing them in cars sold in the US market. Following a transportation bill passed last year that lift some of the restrictions on seatbelt interlocks, automakers such as BMW are considering the benefits of using them in future cars. Now, before you go crying about your lost freedom, keep reading.
BMW said in an October 2012 petition that the use of seatbelt interlocks would allow the company to make lighter and more spacious vehicles, if the devices could be used in lieu of unbelted crash tests. The crash test has required the addition of bulky safety features, such as knee bolsters, that aren't as necessary when occupants are buckled up, especially when considering the dizzyng list of safety features that come standard on today's cars. Europe, which has a higher rate of seatbelt use than in the US, doesn't perform unbelted crash tests on cars sold there.

Formula E gets wireless-charging BMW i8 safety car [w/video]

Racing series typically select a safety car appropriate to the kinds of racecars for which they'll be setting the pace. So you might find a Mercedes SLS pacing a Formula One grand prix, for example, and you're more likely to find a BMW M4 on duty at a DTM race and a Chevy Camaro or SS on an oval speedway for a NASCAR or Indy race. It would only stand to reason, then, that the FIA Formula E Championship kicking off next month in Beijing would press a plug-in into service as its safety car. But the organizers didn't go for your run-of-the-mill Nissan Leaf or Toyota Prius.
No, the safety car for Formula E will be a BMW i8 specially modified for the occasion. As you can see from the video below, the hybrid sports car packs a full roll cage, racing buckets with harnesses, special communications systems and on-board fire extinguishers. But that's not all.
In partnership with technological partner Qualcomm, the Formula E support fleet - including two examples each of the i8 and i3 - will feature inductive charging. So while one is out on the track, or at least sitting at the end of the pit lane waiting to be deployed - the other will be charging wirelessly. The vehicles are still pending FIA approval, and only one has been outfitted with the Qualcomm Halo wireless charging system (with the others to be retrofitted later), but they were all on hand for the recent practice race at Donnington Park.