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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.

BMW shows 670-hp plug-in 5 Series GT concept

BMW quietly revealed a 5 Series GT concept earlier this week at an event in France, and it sports a plug-in hybrid powertrain capable of a whopping 670 horsepower. Think the upcoming Model X crossover from Tesla sounds good? BMW has something that might be just as enticing for eco enthusiasts who like their cars to be green and mean. BMW quietly revealed a 5 Series GT concept earlier this week at an event in France, and it sports a plug-in hybrid powertrain capable of a whopping 670 horsepower. That's right, a hybrid BMW hatch-crossover with more estimated power than the 2015 Chevrolet Corvette Z06. BMW's setup is called "Power eDrive," and it uses a 20-kilowatt-hour lithium-ion battery pack that provides juice for two electric motors; they work with a 2.0-liter turbocharged four-cylinder engine. This 5 Series GT would be able to travel for 62 miles under electric power. The prototype shows the high-performance potential of the system, but the 5 Series GT is "purely a concept," BMW spokesman Julian Arguelles told Autoblog. The GT made its global debut alongside plug-in versions of the 3 Series and X5. They used more basic eDrive systems with one electric motor teamed with a turbo four cylinder. BMW revealed the prototypes to illustrate its plans to increase production of plug-in hybrids. Its goal is to add plug-in variants to all of its "core-brand models," though specifics and timing are unclear. BMW Group Media information 1. BMW Group Innovation Days 2014: New drive technologies. (Introduction) The recently launched BMW i3 and BMW i8 are the first zero-emission vehicles in the premium segment, being designed respectively as dedicated all-electric and plug-in hybrid models. Their BMW eDrive technology promotes hallmark brand driving pleasure, while at the same time delivering major reductions in fuel consumption and CO2 emissions – all the way to zero tailpipe emissions when operating in all-electric mode. This is BMW Efficient Dynamics taken to its logical conclusion. For more than 15 years, the Efficient Dynamics strategy has inspired and shaped the development of new models across all the BMW Group brands, resulting in the development of highly efficient vehicles that combine dynamic performance with intelligent energy management. Today, thanks to Efficient Dynamics, the BMW and MINI brands offer premium models that set benchmarks in their respective segments in terms of their exceptional balance of performance and fuel economy.

Weekly Recap: The divergent paths of Tesla and Fisker

There's no doubt that Tesla is downshifting while Fisker has been grinding its gears. But it wasn't always that way.
In the wake of Tesla's recent success, it's easy to forget that there were once two California electric carmakers with bright futures.