2004 Bmw 525 I on 2040-cars

Auto blog

2015 BMW M3 Sedan

BMW's all-new M3 Sedan is dynamically nearly identical to its two-door M4 Coupe sibling: a stopwatch reveals that both are sub-four-second cars to 60 miles per hour, a racetrack proves that the mechanical twins are equally as adept on a road course and a full afternoon of driving on public roads demonstrates that each possesses talented everyday adaptability.
Yet after driving both BMW models back-to-back over two full days in Portugal, it's clear there are a few noticeable differences, both objective and subjective, that don't require instrument testing to reveal. All it takes is a few hours behind the wheel of both cars to conclude that one is slightly more agile, and the other a bit more twitchy. One has better outward visibility, while its counterpart is unquestionably more convenient.
It is the little things - subtleties attained through seat-of-the-pants observations - that eventually allow me to choose a favorite.

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 i8 named Autoblog's 2014 Technology of the Year [w/video]

The winner of Autoblog's 2014 Technology of the Year award was given this year for not just one technology, but for how a suite of technologies worked together to make one impressive vehicle. The BMW i8 was named the winner Wednesday night at the Belasco Theater in downtown Los Angeles, just outside the Los Angeles Auto Show. Autoblog's editorial staff agreed that the i8, which drew crowds of attention during our testing days, represents a future of driving that we can't wait to see happen. "I do believe that green vehicles solve a very fundamental problem, and if a car like the i8 can get a rich man with good knees (to get in and out of the car) to drive something with a plug instead of a 12-mpg sports car, then mission accomplished," says Sebastian Blanco, editor of AutoblogGreen and one of our judges. The panel reviewed nearly 50 qualified submissions from readers, editorial staff and industry, the panel of judges named the following as finalists: Dodge's SRT Performance Pages (read more here) The Subaru Eyesight forward collision warning system (read more here) The Performance Data Recorder in the 2015 Chevy Corvette (read more here) The 1.0-liter Ecoboost engine from Ford (read more here) Chrysler's 3.0-liter EcoDiesel V6 engine (read more here) Ultimately, we picked the car that excited us the most. The BMW i8 has a throaty exhaust note when accelerating. It's got carbon fiber, and a plug-in hybrid system that uses a small 1.5-liter three-cylinder engine and an electric motor. It has through-the-road all-wheel drive, and in Europe it'll come with laser beams for headlights. All that, and it's a massive eye catcher. People stop and stare when they see this car, for good reason. It's simply gorgeous. For a more in-depth look at our testing of the car, click here.