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Watch the trailer for Locke, a movie that takes place entirely in BMW's X5

It's no surprise that driving can be incredibly stressful. You're basically trapped in a metal box, and until fairly recently, your ability to communicate with the outside world beyond the toot of a horn or a rolled-down window was all but nonexistent. Locke, a new film starring actor Tom Hardy (best known for his role as Bane in the Batman movie Dark Knight Rises), capitalizes on that feeling of isolation and stress by setting the entire movie in a BMW X5.
Locke is written and directed by Steven Knight, author of Eastern Promises, and the trailer shows Hardy's character being put under increasingly intense emotional stress as he drives along in his Bimmer. We don't know much more than that, as the 90-second trailer really doesn't give away much.
The film premiered at last year's Venice Film Festival, and reviews are available that tell more about the story, but we don't believe in spoilers. It's poised to hit theaters in the UK on April 18 and the US on April 25. The trailer reminds us of a far more artistic take on Steven Spielberg's 1971 movie, Duel and has our interest piqued. Scroll down to watch the trailer, but consider yourself warned, there's a brief moment of profanity.

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:

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.