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BMW to offer carbon fiber wheels in a year or two

The Citroën SM sat on the first set of production glass fiber and resin wheels in 1972 when parent company Michelin developed the exotic hoops in order to take the SM rallying. It wasn't until 2008 that we got the first all-carbon-fiber wheel for passenger cars in the form of a prototype model from Weds Sports in Japan that remained a prototype. Australian company Carbon Revolution followed that a year later with its CR-9 all-CF wheel, first introduced on the Shelby Ultimate Aero and now available for independent purchase for about $15,000 per set. BMW could be the first OEM to offer entire wheels in carbon fiber reinforced plastic in two years.
The wheels - either all-CFRP or using a CFRP rim and alloy spokes - were shown off during BMW's Innovation Days in Munich and are products of the development work done on its i-branded cars. The full-CFRP wheel is 35-percent lighter than a forged alloy wheel, the hybrid alloy and CFRP wheel is 25-percent lighter, making for a decent drop in unsprung rotating weight. As demonstrators during a tech day the wheels aren't yet in the pipeline for production and EU approval, but an article in Auto Express claims that they could be on the market as soon as two years from now.
Other possible parts include a full carbon fiber steering wheel and propeller shaft, the latter of which is coming as a single-piece component on the new M3 and M4. BMW is also talking up its use of secondary carbon fiber - waste material from i3 and i8 production - that can be used for items like IP support structures, seat frames and spare wheels in place of traditional metals like aluminum and magnesium. There's an excerpt of the Innovation Day press release below with more details.

Researchers halfway to cutting carbon fiber costs by 90%

Carbon fiber has been utilized for decades to build racecars, as a means to cut weight while maintaining strength. But until recently, the space-age material has been largely absent from the street on anything but supercars because of the expense to use it. Recently, BMW signaled a major shift in that trend when it starting using carbon fiber reinforced plastic panels on the i3 and i8. This relatively small scale start might be just the beginning; the German company believes that a breakthrough to inexpensively manufacture the lightweight stuff is just on the horizon.
MAI Carbon Cluster Management GmbH counts BMW, Audi, Airbus, the German government and many other organizations as supporters, and it's researching how to make carbon fiber cheaper to produce, according to Automotive News Europe. The company thinks it can reduce costs by 90 percent in the near future. "We've certainly reached a halfway point on our cost-cutting target for suitable carbon-fiber parts," said project head Klaus Drechsler to Automotive News Europe.
Unfortunately, it isn't entirely clear just what MAI Carbon is doing to make such a huge leap possible. However, a recent post on the company's website talks about a new form a carbon fiber using a thermoplastic matrix that could be cured in less than three minutes. That's compared to about 90 minutes in the traditional process with an autoclave.

Updated BMW X6 spied running the 'Ring in Germany

Following the debut of the X5 earlier this year, it shouldn't come as a shock that BMW is testing an updated X6 in its homeland. The Munich-based manufacturer trekked to the Nürburgring to test the lifted, four-door coupe it calls a Sports Activity Vehicle, while also giving us our first peak as to what the future holds for one of the weirder models in the brand's stable.
Mainly, we can safely expect the next X6 to get the same range of refinements made to its platform-mate, the X5, which debuted earlier this year. If we're lucky, that could mean an X6 sDrive35i, complete with rear-wheel drive with which to fling the big SAV about. Adding a rear-drive option could also broaden its admittedly limited appeal by lowering the cost of entry, which could serve the pricier X6 well. As a point of reference, the X5 sDrive35i is priced at $2,300 below an xDrive all-wheel-drive-equipped model.
The X6's top-flight xDrive50i model should get the same 45-horsepower bump as the X5 xDrive50i, thanks to refinements to its twin-turbocharged, 4.4-liter V8, while the 3.0-liter, turbocharged six-pot should remain unchanged. We wouldn't hold our breath for an X6 diesel to arrive, although weirder stuff has happened. Like the X5, though, this should be a pretty slim refit that improves an already competent package to go along with an expected increase in price.