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2015 BMW M4 Convertible is here to put wind in your sails

Each generation of the BMW M3 has included a convertible model. Even the distant E30, the patriarch of the M3 line, had an ultra-rare (only 787 were built) droptop model. The convertible became more common on the successive generations, with the hardtop-convertible E93 being the most recent. Considering this history, there seemed very little doubt that as the M3 became the M4, a convertible would be in the cards. Now, the new droptop has arrived.
Set for its global debut at the 2014 New York Auto Show, the 2015 BMW M4 Convertible features, like its forbearers, everything that's great about the hardtop variant while adding an unlimited amount of head room. That means the same 3.0-liter, 425-horsepower, 406-pound-foot, twin-turbocharged straight six sits under its domed hood, while either a six-speed stick or a seven-speed M dual-clutch transmission dispatches power to the fat rear tires.
As for specific differences between the hardtop and the new convertible, obviously, the droptop is heavier. A lot heavier. Where an M4 with a six-speed manual tips the scales at 3,530 pounds, the M4 Convertible weighs in at 4,055 pounds. Believe it or not, BMW has actually trimmed 90 pounds from the last-generation M3 convertible, code-named E93. This marginal weight reduction from the third-generation convertible to the fourth is barely half of the 174 pounds BMW was able to subtract when transitioning from M3 Coupe to M4 Coupe.

BMW invests in carbon fiber for use beyond i and M models

The immense amount of resources BMW has poured into its i brand program hasn't stopped, and recent developments indicate it's likely to pay off for BMW and BMW buyers outside the i brand. The i8 has already sold out its first year run, the i3 racked up 10,000 orders before it even went on sale and is already the subject of public discussion about being stretched into an i5, and a new investment in carbon fiber production has the automaker talking about CFRP use in non-i and non-M models.
BMW and SGL Group got together to form SGL Automotive Carbon Fibers (ACF), and the joint venture produces all of the CFRP for the i3 and i8 on two production lines at its plant in Moses Lake, Washington. After already investing $100 million to increase capacity, BMW has announced that another $200 million will add four more production lines, tripling production from 3,000 tons per year to 9,000 tons. When the expansion is complete in 2015, BMW says the Moses Lake facility will be the world's largest carbon fiber plant.
That's a lot of weave and the long view is that it will find its way into core models, with BMW exec Dr. Klaus Draeger saying, "As part of an intelligent mix of materials, we will apply carbon also beyond our BMW i and BMW M models in the future," and be able to do so "at competitive costs and in large quantities."

BMW M3 driving off cliff is a chilling PSA

We're a little shocked that the unnamed owner of this cliff-diving E46 BMW M3 would upload the in-car footage of his accident to YouTube. Not only that, he uploaded two videos: raw footage of his roll down the cliff (it looks like somewhere in the Southwest, maybe Arizona) and a tribute video for his BMW that suffered the most severe consequences of understeer. Not only does uploading the videos leave him wide open for judgment by fellow enthusiasts (just read the YouTube comments), but we imagine if the police and his insurance company somehow don't know about the incident already, they will shortly. Scroll below to view for yourself.
The raw footage shows the sort of driving that led to the M3's violent tumble, and it serves as a good public service announcement reminder for everyone out there: Just like the Spengler's streams, double yellow lines aren't meant to be crossed. Also, hard driving is one thing, but hammering on public roads at speeds clearly above your skill levels as a driver is not only a recipe for legal trouble, it's a script for ruining your car at the very least, if not your life.