2006 Bmw 3.0si on 2040-cars

Auto blog

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.

Check out the trick way you access the tire valve on this BMW Alpina B6

The wheels are one of the first things you notice when checking out the 2015 BMW Alpina B6 xDrive Gran Coupe. The 20-inch aluminum alloy rollers have 21 spokes that spray out from their hubs, creating one of Alpina's signature design features. But there's also plenty of function to go along with the stylistic form of this hotted-up BMW 6 Series Gran Coupe.
By rotating the Alpina roundel and unlocking the center hub, you gain access to the tire valve and bolts, which are hidden inside. They're literally kept under lock and key, and they protect your Alpina's wheels from the elements and theft. This unique center-fill system employing a hollow spoke isn't a new setup for the favored BMW tuner, but since Autoblog had one in our offices this week, we thought we'd take the opportunity to show the unique mechanism in case you haven't seen it before. Check it out in our brief video below.

Electrified BMW X1 spotted testing

So here's something interesting. This might look like an ordinary BMW X1, but take a closer glance - those stickers on the side read "hybrid test vehicle," and around back, there doesn't appear to be a tailpipe at all. But does this mean that BMW is working on a straight-up all-electric version of its smallest crossover? Let's hypothesize for a moment.
Just because we can't see a tailpipe in these photographs doesn't mean there isn't one somewhere under there. And while those hybrid stickers are an indication that there's some sort of electrification going on underhood, it could just be for a forthcoming gasoline-electric version of the X1. Lexus recently confirmed it would be bringing a small hybrid CUV to market that will compete in the X1's space, so perhaps BMW is working on another powertrain option to offer when its littlest crossover gets refreshed.
Also consider that Toyota collaborated with Tesla to bring back the RAV4 EV, which would sort of compete with the X1, so it also stands to reason that perhaps this is an early test mule for a larger all-electric vehicle in the upcoming, eco-minded BMW i range. Our spies seem pretty confident that the prototype seen here is indeed an all-out EV, but we just can't say with certainty without more evidence.