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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.

Mercedes and VW battling Uber and Apple to spend billions on Nokia mapping division

Whether for autonomous driving or simply better navigation, digital mapping is closely linked with the future of motoring. The sale of a major player in that industry is spurring a showdown between automotive behemoths and tech giants, and it's a fascinating battle to watch unfold. Nokia is selling its Here mapping division, and while the company might not have the name recognition of Google, it controls about 70 percent of the auto market. The business is valued at $785 million, according to Reuters, but is likely to sell for significantly more. Case in point: Uber reportedly submitted a $3 billion bid. Apple has also been rumored to be among those interested in purchasing Here. A trio of German automotive heavyweights is mounting a challenge to Silicon Valley, though. According to Reuters speaking to two unnamed insiders, Daimler, BMW, and Audi are teaming up to submit a joint bid for an undisclosed sum. They're worried that if Here falls under the control of tech companies, then automakers might have limited availability to these vital maps in the future. Nokia bought Here for $8.1 billion in 2007, according to Reuters. The company operates a fleet of vehicles with cameras and LIDAR that drive around the world to create high-definition maps. It also generates even more information by using the GPS data from shipping and trucking companies.

BMW 4 Series Convertible basks in the sun

The BMW 4 Series Convertible will show its non-camouflaged face sometime later this year, but our spies recently caught this nearly naked prototype out getting some sun. As you'll recall, the droptop 4 Series replaces the 3 Series Convertible in the BMW range, and if our recent stint behind the wheel of the new 435i Coupe is anything to go on, this topless 4er should be quite a fun runabout for sun-drenched motoring.
To no one's surprise, the 4 Series Convertible shares all of its design with the 4 Series coupe, save, of course, the obvious roofectomy. Beyond that, the topless 2+2 will use the same engines and transmissions as the coupe, meaning it should arrive in the US in both 428i and 435i guises, powered by a 2.0-liter turbocharged inline-four and 3.0-liter turbocharged inline-six, respectively. Both six-speed manual and eight-speed automatic transmissions will be available.
The car spied this time around has the full M Sport visual treatment, with the revised (and better-looking) front fascia, larger 19-inch wheels, and attractive Melbourne Red paint. Interestingly, it appears this prototype has the standard xenon headlamp setup, rather than the full-LED option that's also available.