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BMW X4 hatches its fastback shape in Shanghai

The day has finally come for BMW to pull the covers off its X4 Concept at the Shanghai Motor Show. The machine brings few surprises - we've already seen an official image gallery from the German automaker, so its exterior shape was well known - but at least now we get to see it with our own eyes, and with the lenses of our very own cameras.
You can clearly see the fastback roofline in our high-res image gallery above, along with the jacked-up stance that allows BMW to call this machine a Sports Activity Vehicle, which basically means "Crossover" to our friends in Munich. We've seen similar vehicle shapes before, most notably in the form of the BMW X6, but also as far back as the 1980s from the likes of AMC.
We fully expect the transition from concept to production to be pretty seamless, so what we see here is, for the most part, what we'll see on the showroom floor in 2014. Feel free to peruse the press release below, but first, be sure to browse through our live images from Shanghai and let us know what you think.

Mini JCW Paceman vs. BMW M135i in family faceoff

Over the last year, we've had the chance to drive two of the most exciting hatchbacks in the BMW family - the BMW M135i and the Mini Paceman John Cooper Works - but Autocar has managed to get the two corporate cousins together for a head-to-head comparison. Just like our initial impressions of the Paceman JCW, Autocar has little to complain about this new 215-horsepower hatchback... until it begins to factor in the faster, better-mannered and similarly priced M135i.
Despite laying down an extra 100 hp and delivering a 0-60 time that is almost two seconds quicker, the M135i carries the same price tag of 29,535 pounds in the UK; US pricing for the Paceman starts at $36,200, while it still isn't even clear if the US will be getting the M135i. Even more surprising is the fact that the Paceman falls short of the M135i in regards to rear seat and cargo volume, and just barely squeaks out a win in the fuel economy department. Scroll down to watch the BMW versus Mini hot hatch battle.

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.