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2015 BMW 4 Series Gran Coupe might be a better 3 Series sedan

At BMW, there really is something for everyone these days. Just take a look at the massive 3 Series/4 Series range - you can have a sedan, coupe, convertible, wagon, or funky-backed Gran Turismo. And now, with the introduction of the 2015 4 Series Gran Coupe, you can have another seda... err, hatchback, actually. But perhaps, a better one.
Compared to the 3 Series sedan, the 4 Series Gran Coupe is both longer and wider by about half an inch, but is shorter in overall height by an inch and a half. Honestly, to our eyes, it looks a little better than the 3 Series, too, what with its longer roofline, more sculpted rear haunches and lower stance. Full interior volume specs for the 4GC aren't available as of this writing, but we expect them to be roughly the same as the 3 Series, perhaps with a small decrease in headroom and rear legroom. Trunk space, at 17 cubic feet, matches the 3 Series sedan, and because the 4GC actually uses a hatchback design, it should be easier to access.
Powertrains are completely carryover from the rest of the 3/4 Series range. The 428i uses BMW's well-liked 2.0-liter turbocharged inline-four with 240 horsepower and 255 pound-feet of torque, and the 435i is fitted with the company's 3.0-liter turbo-six, good for 300 hp and 300 lb-ft. An eight-speed automatic is the only transmission available in the US with either model and rear-wheel drive is standard. Only the 428i can be had with BMW's xDrive all-wheel-drive system, and interestingly, the 428i Gran Coupe is actually expected to be more fuel-efficient than its 3 Series sedan counterpart. The GC is estimated to return 23/35 miles per gallon city/highway, compared to the 23/33 mpg in the 328i sedan. The 435i Gran Coupe should achieve the same 22/32 mpg ratings as the 335i sedan.

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 i5 could get Toyota-sourced hydrogen power

It's starting to feel like the automotive landscape is right on the cusp of a boom in hydrogen-fueled vehicles. After all, the Toyota FCV is nearly ready, Volkswagen is readying a fuel cell concept for this week's Los Angeles Auto Show and Hyundai already sells its Tucson Fuel Cell. The next big name to add to that list might be BMW, as the company's co-development deal with Toyota starts to bear fruit.
According to Autocar, BMW may use a version of the fuel cell system from the Toyota FCV in the future i5. As part of its eco-oriented i sub-brand, the i5 is expected to be a stretched version of the i3 (pictured above) with extra rear legroom and cargo space. It's unclear at the moment whether a battery-powered pure electric powertrain will also be available. If accurate, then the rumor could give the Bavarian brand a counterattack against Mercedes-Benz' planned fuel cell vehicle in 2017.
BMW and Toyota first signed the memorandum of understanding to co-develop fuel cells, lightweight technology and a sports car back in 2012, and they made the arrangement official in late 2013. So far, few details on the progress of the work have been disclosed, but the performance model has been rumored to use a front-engine, all-wheel drive layout with supercapacitors.