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2014 Mercedes-Benz B-Class ED has 87-mile range, 84 MPGe

Well, that extra weight had to be felt somewhere. With Mercedes-Benz getting ready to start US sales of its B-Class Electric drive this summer, the big question was how well its range would stack up against other electric vehicles sold in the States. Turns out, the Benz is a bit of a juice hog. Let's say up front that the 87-mile single-charge range of the Mercedes-Benz actually stacks up nicely against its competition, since that distance puts the new model right in line with the Nissan Leaf and BMW i3 (we'll ignore the Tesla Model S for a second, here). You can find the numbers at the US Department of Energy's FuelEconomy website. As far as miles per gallon equivalent ratings, though, the Benz's steel frame makes it come up short, as it's about 1,300 pounds heavier than the carbon-fiber-body i3 and about 600 pounds heavier than the Leaf. The B-Class EV has a bigger battery than the i3 or the Leaf (36 kWh compared to 22 kWh for the i3 and 24 kWh for the Leaf) and that's one reason the car gets an 84 MPGe rating, which is about 26 percent less than the Leaf's and 32 percent less than the i3's. But at least the local utility companies will be happy. Mercedes-Benz priced the 177-horsepower B-Class ED in April at $41,450, or $100 more than the i3. Check out Autoblog's First Drive impressions here.

Smart brand will be built in China as a Daimler-Geely joint

FRANKFURT/BEIJING — Daimler will build its next generation of Smart electric cars in China through a joint venture with Geely, as a way to increase economies of scale in a market segment that is struggling to turn a profit. China's Geely built a stake of almost 10 percent in Daimler last year, saying it wanted to forge an alliance to develop electric and self-driving cars to better compete against new challengers such as Uber and Google. Daimler said on Thursday it would build the next generation of Smart-branded city cars at a purpose-built factory in China, and planned to share its expertise in manufacturing, engineering and design with Geely. The high cost of electric car batteries has made it hard for automakers to build affordable zero-emissions vehicles, leading several of them to strike alliances with Chinese partners. Daimler's German rival BMW recently unveiled plans to build electric Minis in China, where production costs are low and demand for small electric cars is rising. Daimler and Geely did not disclose financial terms of their deal. The details of the joint venture will be finalized by the end of 2019, they said in a joint press release. Daimler currently develops and builds Smart cars with Renault at factories in France and Slovenia. The Daimler factory in Hambach, France, will be retooled to build Mercedes-Benz cars. Geely has been expanding rapidly through mergers and acquisitions since 2010, when it acquired Swedish carmaker Volvo from Ford. Last year, Daimler and Geely set up a ride-hailing joint venture in China. Daimler's Chief Executive Dieter Zetsche said last month the German carmaker was in talks to deepen its alliance with Geely after the Chinese's group's chairman Li Shufu bought a 9.69 percent stake in Daimler in 2018.

Mercedes-Benz Concept IAA is a modern silver aero

While we English-speaking folk call it the Frankfurt Motor Show, our German friends call this week's bi-annual confab the Internationale Automobil-Ausstellung, or IAA. At first glance, then, you might think Mercedes-Benz named its Frankfurt concept, the Concept IAA, after the show it'd debut at. But, the Concept IAA isn't named for the show. It's actually an abbreviation for Intelligent Aerodynamic Automobile, and it's very aerodynamic indeed. This four-door coupe can transform, while moving, from its sedan-like design mode to an ultra-sleek, gas-powered fish of a car. This aerodynamic mode has a drag coefficent of just 0.19. That's sleeker than a Tesla Model S, and it ties the rating of the General Motors EV1 electric car. In fact, it's very nearly as aerodynamic as the Volkswagen XL1. The IAA can transform automatically at 80 kilometers per hour (about 50 miles per hour) or via the press of a button. When it enters an aerodynamic mode, eight segments at the back of the car extend out, adding over 15 inches to the overall vehicle length, effectively extending its already tear-dropped-shaped tail. And that's just the most visible aero aid. At the front of the car, flaps in the bumper extend out nearly an inch, while there's a smaller extender in the back bumper. These serve to keep air away from the wheel arches, where turbulence can become an issue. Of course, Mercedes has thought of this, too, fitting "Active Rims" that "alter their cupping from 55 mm to zero," whatever that means. There's even an active aero aid inside the front bumper, where a louver extends backward by 2.3 inches to smooth out the air traveling underneath the car. Outside of its super-slippery mode, the IAA is a relatively handsome four-door coupe, featuring the kind of plunging roofline that wouldn't look out of place on the company's pioneering CLS-Class. The interior is certainly worthy of the CLS, too. It's home to gorgeous white leather and touch-based controls, and in general, looks very luxurious. Mercedes' dogged pursuit of aerodynamics does not mean that the Concept IAA is some gutless ecomobile. Under the skin is a gas-powered, plug-in hybrid system that produces up to 279 horsepower and allows the sleek sedan to hit 155 mph. Its all-electric range is based, of course, on what mode its body is in. It's most impressive in aero mode, where it will cover 41 miles on a single charge. Switch over to design mode, and that figure drops slightly to 38.5 miles.