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BMW M4 Convertible spied with naked top and trunk

Our trusty spy photographers have been at it again, snagging these first images of the forthcoming BMW M4 Convertible without camouflage on its retractable roof and rear deck. You'll recall that this is not the first time we've seen the followup to the M3 Convertible, but that the last batch of images we had were encumbered by a lot more camouflage - this car is virtually naked by comparison.
Not surprisingly, the M4 looks to share its folding hardtop design with the standard 4 Series droptop, and it should operate in a similar manner as well. It's no surprise, but it looks like BMW is going to try and make the transition from M4 Coupe to M4 Convertible as effortless as previous efforts converting the M3 to an M3 Convertible. That should mean that below the beltline, this car is nearly identical to the coupe we saw in Detroit.
As for the camo'd features on these spy photos, the hood, front fascia, rear fascia, quarter panels, side sills and mirrors have all been shown on the M4 Coupe, and don't really bear mentioning. There's been no word of just where the M4 Convertible will make its debut, although considering the lack of disguise on this car, Geneva seems like a likely destination.

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.

BMW Vision Future Luxury Concept is bold and beautiful in Beijing

BMW officially unveiled the Vision Future Luxury Concept today (or is it tomorrow?) at the 2014 Beijing Motor Show, giving the world's media an in-the-flesh look at not only a future design theme for the brand, but a rumored flagship model.
This is a looker in person, thanks to its Pininfarina Gran Lusso Coupe-inspired design, and it's not too difficult to imagine it in production car form, with smaller wheels, larger mirrors and the other minor transformations that take place from drawing board, to auto show and, finally, to assembly line. In general, it seems like there are more than a few parts of this vehicle that are ready for production.
We didn't talk about it in our initial post, but it bears mentioning that this particular concept is wearing an eDrive badge on its backside, indicating that under the Vision Future Luxury's long hood is some form of plug-in-hybrid propulsion. It's anyone's guess as to what engine, battery and motor combinations BMW is playing with, although it does seem questionable whether BMW would launch a PHEV flagship to do battle with a top-rung variant of the Mercedes-Benz S-Class (which will likely use V12 power).