2007 Bmw Z4 3.0si Coupe 28k Original Miles, Gray/black, Automatic 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.

BMW 4 Series Gran Coupe blows the doors back on [w/video]

BMW sure seems to take pleasure in confusing the hell out of us. It used to be pretty simple: if you wanted a compact Bimmer, you had to look no further than the 3 Series. Then it was just a matter of which bodystyle you wanted. But the smaller end of BMW's lineup has gotten more complicated lately. Never mind the 1 Series and 2 Series (in their various iterations) that have slotted in below it - now the 3 Series has been split in two: Want a four-door, get the new 3 Series. Want a two-door, the 4 Series is your address. Right?
Almost. Because now there's a 4 Series Gran Coupe that keeps the two-door's roofline (or some approximation of it) but adds an extra set of doors in the back, thereby bridging the gap between the 3 Series sedan and 4 Series coupe. And it's just made its public debut here at the Geneva Motor Show.
The difference between this and the two-door 4 Series is plain to see: it's got two extra doors. But what's the difference between this and the 3 Series sedan? About two or three grand, to start with - depending on which version (428i Gran Coupe or 435i Gran Coupe) you choose. But it's also sleeker, more muscular and altogether that extra bit sexier. Which is a good trait, as you can see from our gallery of live shots above, to have in your European sports sedan, coupe, or whatever you want to call it.

Land Rover Defender V8, next Range Rover, new BMW M3 share the Nurburgring

From open-track days to 24-hour races, so many events are held on Germany's Nurburgring track that carmakers need to share the tarmac with their rivals to put new models through their paces. Industry pool days are normally closed to the public, but a seven-minute video reveals what Land Rover, BMW, and several others are testing. Posted on YouTube by StatesideSupercars, the video shows prototypes racing around the track in the mid-summer heat. Land Rover's engineers are busy putting the final touches on the V8-powered variant of the new Defender, which our spies have previously spotted testing in its home country of England, and they're developing what looks like the high-performance, SVR-badged version of the next-generation Range Rover due out in 2020. As we reported earlier in 2020, the hot-rodded Defender packs a 5.0-liter V8 between its fenders, though its horsepower and torque outputs remain under wraps. Unverified rumors claim it will arrive as a limited-edition model to avoid sending Land Rover's fleet-wide CO2 emissions through the roof. And, the video confirms chassis engineers have made extensive modifications to the SUV's suspension, partly to keep body roll in check. Walking down the pits, members of BMW's testing team are getting up early to put track miles on an enigmatic variant of the face-lifted M5, and on the next-generation M3. We've already seen the M5 in the metal, so why is it still camouflaged? One possible answer is that we're looking at the rumored CS version, which should receive a 641-horsepower V8 thanks to software tweaks and a better cooling system. The simpler (and more boring) possibility is that BMW isn't quite done testing the M5, and it doesn't want to waste time removing the black and white wrap. Your author regularly spotted i8 prototypes in full camouflage regalia months after its debut. As for the M3, much has already been said about its mammoth grille, which seemingly mirrors the one worn by the new 4 Series. Autoblog drove a pre-production prototype in June and walked away impressed. It receives an evolution of the X3 M's 3.0-liter straight-six turbocharged to 473 horsepower, though selecting the optional Competition package will increase that figure to 503. And, fear not: The six-speed stick is coming back. Land Rover and BMW aren't the only companies playing on the 'Ring.