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BMW readying Spartanburg expansion for X7 production

Prior to the debut of the original X5 in 1999, the idea of a BMW crossover might have seemed like heresy. But here we are, fifteen years removed from the Frank Stephenson-penned design, and the Bavarian automaker has expanded its crossover lineup to include the X1, X3, X4 and X6, and it's showing no sign of slowing down.
We recently reported that BMW is planning on slotting an X2 in at the bottom of the range between the X1 and X3, but now it's being widely reported that it's got an even larger one to put in at the top of its utility line. That, of course, would be the X7, a long-rumored three-row model that would give BMW a large family hauler to challenge the Mercedes-Benz GL.
According to The Wall Street Journal, BMW is expanding its assembly plant in Spartanburg, South Carolina, to accommodate production of the X7 alongside the X3, X4 and X5 that it already builds there for local consumption.

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.

The new BMW M4 GT4 carries the factory-prepped race torch

Purchasing a factory-prepared race car is a relatively easy thing to do, if you have the means. A number of manufacturers, from Mazda to Porsche, sell cars that are race-ready straight out of the box. BMW, following on the success of the E92 generation M3 GT4, announced today that an M4 GT4 will be ready for the 2018 season. The GT4 spec is the lowest class of FIA GT racing. It's meant for amateur racers, and as such the regulations are quite strict. Every car must have at least one amateur driver, and the rules as to what constitutes as an amateur are very specific and clear. Aside from BMW, Aston Martin, Porsche, and Toyota all field cars in GT4 spec races. Like the M3 GT4, the new version of the M4 comes from the factory homologated to FIA GT4 spec. BMW says the M4 GT4 will use the standard coupe's 425 horsepower twin-turbocharged 3.0-liter inline six cylinder engine, including the electronics – the outgoing M3 GT4 used the standard car's 420 hp, high-revving, 4.0-liter naturally-aspirated V8. The new car will also pull bits like a carbon fiber hood from the M4 GTS. Specific details like weights or fluid capacities haven't been revealed, nor has the transmission been confirmed. It's unclear if the M4 will be heavier than the smaller outgoing M3, which weighed slightly over 3,000 lbs. Expect things like built-in air jacks, a roll cage, lightweight seats, and other race-ready parts to carry over. The M4 GT4 will start testing at the end of 2016 in preparation for a 2018 debut. Customers with who can't wait can purchase one of BMW's other race-ready offerings. BMW currently sells the M6 GT3 and M235i Racing. Parts like the pedal box, brakes, and seats for the M4 GT4 are the same as those in the M6 GT3. Pricing hasn't been announced, but the current M3 GT4 sells for about $140,000. The car should go on sale late next year. Related Video: Motorsports BMW Racing Vehicles bmw m4