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2015 BMW 4 Series Gran Coupe

It's hard to say what a coupe is anymore. Is it merely a car with two doors? Does it have to have an arching roofline? Do frameless windows count for anything? Can a five-door hatchback or even an SUV be a coupe? At some point in the last few years, nearly everything we thought made a coupe a coupe has been challenged by something that calls itself a coupe, but to most people isn't. Our friends at BMW have led most of this line of questioning.
The new 2015 BMW 4 Series Gran Coupe is one of the latest Bimmers to challenge the moniker (which also challenges the idea of "Gran," for that matter), and unlike some of its other "coupe" variations - we're looking at you, X6 - this one is a pretty one. The 4 Series Gran Coupe is essentially a four-door version of the 4 Series, which is itself a two-door version of the 3 Series. Huh? Wouldn't that simply make it another 3 Series? Of course, but this one is prettier, as it uses the 4's sexier body styling, with its lower nose, wider-looking stance and edgier lighting graphics. It is also technically a five-door hatchback, not a sedan per se, and it utilizes frameless side door glass, which apparently does count for something in BMW coupe-land. Significantly, the 4 Gran Coupe's wheelbase is identical to the two-door; if it was longer - as is the case with the 3 Series and 5 Series hatchbacks - that might make it a "Gran Turismo." Confused yet?
We recently got our first chance to drive the 4 Series Gran Coupe at a press launch in Spain, and while the only version we were given was a rear-drive 428i Gran Coupe with the M Sport contents, the harrowing roads around Bilbao gave us a good idea of what this car is all about from a driving dynamics standpoint. Here's some of what we found:

2014 BMW Z4 offers minor refinements with a majorly orange wrapper

The redesigned BMW Z4 was rolled out onto the show floor at the Detroit Auto Show, with the example in question being an sDrive35is variant, with the just-less-than-screaming Hyper Orange Package. The exclusive colorway includes the metallic orange paintjob, as well as trim-specific seats, stitching and accents for the interior. More importantly, the 35is driveline means that you'll find a high-output version of the turbocharged 3.0-liter N54 engine, here outputting 335 horsepower and 332 pound-feet of torque, and a 7-speed DCT gearbox.
Two slightly less ferociously powered versions of the Z4 will be available for the new model year, too (both familiar). The Z4 sDrive35i is good for 300 hp and 300 lb-ft, while the still-potent sDrive28i features a 2.0-liter turbo four-cylinder making 240 hp and 260 lb-ft.
You'll fine some more details about the 2014 BMW Z4 in our original news story about the model here, or by scrolling down to read the full BMW press release.

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.