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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.

These are KBB's Top Ten Green Cars for 2015

For the second straight year, the Top Ten Green Cars list from KBB (i.e. the acronym for Kelley Blue Book) should have been retitled KBBimmer. That's because the BMW i3 electric vehicle has topped KBB's list of greenest production vehicles for two years running. That means that having the lowest purchase price wasn't that big of a factor in determining the winner. KBB releases its list about this time of year every year in honor of Earth Day and this year not only praised the Bimmer for its performance and single-charge range, but also noted that its factory is powered by wind turbines, which gives the car and the company a few more treehugger points. Meanwhile, KBB didn't exactly surprise a ton of people by including models like the Chevrolet Volt extended-range plug-in (with a caveat that the next-generation version will be coming out next year), Nissan Leaf and Tesla Model S EVs and the Toyota Prius' four hybrid variants. Other somewhat lower-profile advanced-powertrain models to make the cut were the Honda Accord Hybrid, Toyota Camry Hybrid, Volkswagen e-Golf and Ford C-Max Hybrid. Rounding out the list was the Volkswagen Jetta TDI, the only diesel that KBB recommended as a Top Ten pick. Related Video: Featured Gallery 2014 BMW i3: First Drive View 33 Photos News Source: KBBImage Credit: Drew Phillips Green BMW Electric top 10

BMW i8: Jaw-dropping style and green performance, but why?

Why is there a BMW i8? Given the relative simplicity, affordability, practicality and energy efficiency of BMW's i3 sedan – available as a $42,000 all-electric or $46,000 extended-range EV – why design, engineer and build the much more complex and expensive ($137,450) but much less practical, exotic plug-in hybrid i8 2+2 sports car? Are i8 sales really worth BMW's huge investment of engineering effort and dollars? In 2015, BMW sold 2,265 i8s in the US, or about 189 a month. That compares to 11,024 (919 a month) for BMW's own i3, an estimated 27,840 (2,320 a month) for Tesla's battery-only EV Model S sedan and 1,024 (85 a month) for Cadillac's handsome, more practical and less expensive (but ridiculously overpriced and dismal-selling) ELR extended-range-EV luxury coupe. Are such sales really worth BMW's huge investment of engineering effort and dollars? The i8's lightweight Carbon Fiber Reinforced Plastic (CFRP) "Life Module" passenger cell rides on an aluminum "Drive Module" chassis that houses its complex propulsion system – a 228-horsepower, 1.5-liter turbocharged gas 3-cylinder (half of BMW's 3.0-liter twin-turbo straight six) driving its rear wheels through a six-speed automatic and a 129-hp electric motor twisting its front wheels through a "two-stage" automatic – and a 5-kWh lithium-ion battery. Its drag coefficient (Cd) is an aero-slick 0.26, and BMW says it can run on battery energy alone for up to 22 miles. Its total system output is a healthy 337 horses, and its EPA economy is 76 miles per gallon equivalent in gas-electric mode, but just 28 mpg when it's gas-only. A Driver Experience Control and an eDrive button offer EV and Comfort modes, plus Eco Pro (12 percent more range) and Eco Pro+ (12 more). So what is this gorgeous plug-in hybrid sports car like to drive and live with? I missed its press launch so have been hoping for some quality time with one ever since. Production has been limited, and US press cars are few, but BMW said I would eventually get my chance. It finally happened. If the unlovely i3 is a green technology revelation, this supermodel-sexy i8 is a green styling and performance revolution. If the i3 is the practical soccer mom of battery BMWs, the i8 might be the ultimate Teutonic trophy wife. But really, why do it? For starters, just look at it. Some might see a new, high-tech take on the Giugiaro-designed BMW M1 mid-engine sports car. Just 453 of those were built from 1979 to 1981.