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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 patents strange three-cylinder pushrod engines, perhaps for cruiser motorcycle

For decades BMW's motorcycles were easily identified by the two opposed cylinders sticking out of each side of the bike. While you can still find this layout on some of its products, these days the company also uses a variety of other layouts, depending on the model line. Based on European patents, there might even be a Bimmer in the ranks eventually with an absolutely bizarre-looking W3 configuration. BMW actually has two separate patents on these W3 designs, and both of them have the goal of cramming three cylinders into the space of a traditional V-twin. The first splays the cylinder out into a fan shape with pushrods operating the valves. The description submitted to the World Intellectual Property Organization describes the solution as, "The embodiment according to the invention represents an as of yet unknown type of W-3 reciprocating piston internal combustion engine having cylinder angles which can be largely freely sized." The other solution is more of a modification to the traditional V-twin. Two of the cylinders share a crankpin, but the third has its own and is positioned inside the angle of the V. It's a very odd-looking engine. With BMW's assertion that these designs are meant to fit in place of a traditional V-twin, Jalopnik speculates that they could be for a future cruiser from the company, and that would make sense. While brand offers a line of sport tourers with the K1600 line, it doesn't have something more classic to take on the likes of the Ducati Diavel. Creating such a weird engine would probably grab early interest from riders.

Recharge Wrap-up: Derailing Malaysia's B10 plans, Tesla and Solyndra

Tesla Motors will lease the Solyndra building near its Fremont, California factory. The manufacturing facility is more than 500,000 square feet, but the cost of the lease and the production capacity remain undisclosed. The lease of the building, "located conveniently down the road from the Tesla Factory, gives us the space to expand our manufacturing and build more engineering labs as we build up production," says a Tesla spokesperson. The added manufacturing space will help Tesla meet its production goals for the upcoming Model X electric SUV. Trip Chowdhry, senior analyst at Global Research Equities, says that shifting some engineering duties from the Deer Creek facility to the new one could help solve current parking shortages, as well. Read more at Business Finance News. BMW has expressed concerns over Malaysia's planned B10 biodiesel mandate. Malaysia recently announced that it would use crude palm oil to make the B10 blend that would be required to be sold beginning in October, up from the current B7 mandate. "In our tests with B10 biodiesel worldwide, we have found technical challenges," says BMW Group Malaysia Managing Director and CEO Alan Harris, such as the fatty acid methyl ester in palm oil thinning motor oil. Mercedes-Benz also urges reconsideration of B10. The Malaysia Automotive Institute says it will include representatives from the auto industry in talks with the Malaysian Palm Oil Board. Read more from The Star. Pacific Ethanol's acquisition of a competitor, Aventine Energy Holdings, has been approved by shareholders. Pacific is buying Aventine for $192 million in stock. In 2009, ethanol suffered a price drop that forced Pacific Ethanol to decrease production and declare bankruptcy for four of its plants. Now its base extends from the West Coast to the Midwest, as Aventine Energy Holdings has four plants in Illinois and Nebraska. The merger more than doubles Pacific Ethanol's production capacity, making it the fifth-largest ethanol producer in the US. Read more from The Sacramento Bee. Related Gallery Tesla Model X View 15 Photos News Source: Business Finance News, The Star Online, The Sacramento BeeImage Credit: Tesla Green Plants/Manufacturing BMW Tesla Alternative Fuels Biodiesel Ethanol Electric recharge wrapup