2003 Bmw Z4 2.5i on 2040-cars

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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.

Road & Track names its 2013 Performance Car of the Year

Road & Track recently staged its first annual Performance Car of the Year test, pitting 13 new and updated performance cars against each other on track, then graduating the top six to a road test before picking a winner. Additionally, the magazine staff picked the best automobiles of the year in eight categories.
But first, let's cover the PCotY segment. Here's the list of cars brought to the comparison test: Audi R8 V10 Plus; BMW 435i; BMW M6 Competition Package; Chevrolet Corvette Stingray Z51; Ferrari F12 Berlinetta; Ford Fiesta ST; Jaguar F-Type V8 S; Jaguar XFR-S; Mercedes-Benz E63 AMG S-Model Wagon; Mercedes-Benz SLS AMG Black Series; Mini John Cooper Works GP; Nissan GT-R Track Edition; and Porsche Cayman S.
To find out the results of the comparison, head over to Road & Track's website or check the press release below, where you'll also find the magazine's top-rated vehicles in eight categories. Want more? Head over to the 2013 PCotY hub. But before you do that, take a stab at guessing the winner of PCotY (we'll give you one hint: it isn't a Porsche).

2015 BMW X6 M First Drive [w/video]

Please forgive my bluntness, and allow me to cut to the heart of the X6-dissenter argument right at the top. Yes, BMW will sell you a 2015 BMW X5 M that is the motive twin (I assume) of the X6 M you're here to read about, that is also cheaper, roomier, and more conventional in appearance. For many of you – especially the old guard that hears the descriptor "Sports Activity Coupe" and proceeds to unlock the gun cabinet – that's all you need to hear. Because, although the fickle community that consumes and comments on internet car culture seems to be fine with typical-looking SUVs and wagons packing performance-enhancing goodies, the idea of slanting the back of one turns them right off. And yet, BMW continues to sell the things; more than 250,000 units have be delivered in the X6 series' history. As if that weren't proof of concept enough, blood-rival Mercedes-Benz has unleashed the GLE, a coupe-like crossover of its own, complete with AMG pedigree. All of this brought me to Austin, TX, home of Hill Country, The Circuit of the Americas and the 2015 X6 M launch. On both road and track I found a car that was more powerful and blithely capable than ever, while also being exactly as weird to drive as it is a concept to comprehend. Given that the X5 M exists, and offers styling that is more like normal for the SUV genre, both the lovers and the haters of the X6 M are likely to be focused on the way it looks. Here, the 2015 model isn't very much changed from the original, meaning you aren't liable to change sides on the styling debate for this refresh. The '15 model has a slightly fewer black accents on the exterior, along with revised front and rear fasciae and vented (and chromed) front fender gills. The car is almost two inches longer than the existing model, but is near enough the same size in every other direction that you'd have to study the specification sheet to know different. Inside the X6 M that I tested was a beautiful, fully optioned cabin that boasted gripping sport seats and BMW's wide, easy-to-read infotainment screen. The leather-wrapped everything and carbon-fiber trim were both well executed, and my hands rejoiced at the feeling of the thick-rimmed, serious-looking steering wheel. Veterans of the current M5 or M6 will see a lot that looks familiar here, but to my eyes that's high praise. The most impactful changes aren't visual but visceral.