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Recharge Wrap-up: BMW i3 goes against Mercedes B-Class ED, Tesla good for business

Car and Driver has published a comparison test pitting the 2014 BMW i3 against the 2014 Mercedes-Benz B-class Electric Drive. The test not only measured the quality of the driving experience, but also all the quantitative details that are especially important when looking at electric vehicles. For instance, the Benz's real-world MPGe surpassed its own rating, but it still couldn't match the BMW. The B-Class, though, won in the range department. We won't spoil all the results, or Car and Driver's overall pick, but you can head over to the article to find out for yourself. Tesla's expanding business, including the Gigafactory being built in Reno, NV, is encouraging growth in the locales and associated businesses. Some of Tesla's suppliers are talking of relocation, wanting to be close to the action stirred up by the electric automaker's expansion. It makes good business sense to be in the same neighborhood as Tesla. "We can react quickly, and our engineers are constantly working with Tesla," says Futuris General Manager Sam Coughlin. Brookings Institute fellow Jennifer Vey says, "The land around Tesla is being redeveloped and reimagined. It's a mash-up of an anchor campus, startups, housing and transit, in a physically compact area where companies can cluster and connect." Read more at San Jose Mercury News. EVs are doing even more to reduce energy use clean up the air, according to new analysis from the Union of Concerned Scientists. According to findings, 60 percent of Americans now live in areas where EVs do more to reduce emissions than hybrids, up from 45 percent in 2012. Average electricity use is now 0.325 kWh per mile, down five percent from 2011. EV performance - in terms of mileage and emissions - is improving compared to traditional fuel vehicles, based on the sources of electricity in various regions. Read more from the Union of Concerned Scientists. Zipcar's carsharing network has launched in Paris. Zipcar is expanding across Europe, and has already established itself in Austria, Spain and the UK. According to Zipcar France's General Manager Etienne Hermite, "In a highly populated city, Zipcar's model has been proven to remove up to 15 personally owned vehicles from the road for each Zipcar in service, reducing parking demand, congestion and emissions." Zipcar European President Massimo Marsili hopes that most Parisians will eventually be just a short walk from a Zipcar.

Mercedes-Benz engines with 48-volt systems coming in 2017

As part of a big green push announced yesterday, Mercedes-Benz is jumping into the world of 48-volt power. The company will launch a new family of efficient gasoline engines next year and will begin rolling out 48-volt systems with it, likely in its more expensive cars first. Mercedes will use the 48-volt systems to power mild-hybrid functions like energy recuperation (commonly called brake regeneration), engine stop-start, electric boost, and even moving a car from a stop on electric power alone. These features will be enabled through either an integrated starter-generator (Mercedes abbreviates it ISG) or a belt-driven generator (RSG). (RSG is from the German word for belt-driven generator, Riemenstartergeneratoren. That's your language lesson for the day.) Mercedes didn't offer many other details on the new family of engines. There are 48-volt systems already in production; Audi's three-compressor SQ7 engine uses an electric supercharger run by a 48-volt system, and there's a new SQ5 diesel on the horizon that will use a similar setup with the medium-voltage system. Electric superchargers require a lot of juice, which can be fed by either a supercapacitor or batteries in a 48-volt system. Why 48-volt Matters: Current hybrid and battery-electric vehicles make use of very high voltages in their batteries, motors, and the wiring that connects them, usually around 200 to 600 volts. The high voltage gives them enough power to move a big vehicle, but it also creates safety issues. The way to mitigate those safety issues is with added equipment, and that increases both cost and weight. You can see where this is going. By switching to a 48-volt system, the high-voltage issues go away and the electrical architecture benefits from four times the voltage of a normal vehicle system and uses the same current, providing four times the power. The electrical architecture will cost more than a 12-volt system but less than the complex and more dangerous systems in current electrified vehicles. The added cost makes sense now because automakers are running out of ways to wisely spend money for efficiency gains. Cars can retain a cheaper 12-volt battery for lower-power accessories and run the high-draw systems on the 48-volt circuit. The industry is moving toward 48-volt power, with the SAE working on a standard for the systems and Delphi claiming a 10-percent increase in fuel economy for cars that make the switch.

Sunday Drive: Volvo hits a crossover home run, and people still love sports cars

Looking back at the week that just was clearly tells us at least three things. First, crossovers don't have to be boring. Second, people still love sports cars, from the attainable (Audi TT RS) to the fanciful (Mercedes-AMG GT C). And finally, the traditional German trio of premium luxury brands had better not rest on their laurels, because credible challengers are coming in from every direction. The biggest reveal of the week, at least judging by the interest of Autoblog readers, was the Volvo XC40. Not only is the little 'ute a looker, it introduces some innovative new buying/leasing schemes designed to appeal to an audience accustomed to trading in and trading up every couple of years. Think of Volvo's flat-fee lease as you would a smartphone contract, and you'll be on the right track. Genesis looks to have a hit on its hands in the form of the G70 sport sedan. We took a Korean-spec model for a spin and found a lot to like about the upstart contender. We can't wait to sample one here in the United States to see how it stacks up against the Audi A4, BMW 3 Series, and Mercedes-Benz C-Class. In other news, we're still really excited to see a production Ford Ranger Raptor. But if you just can't wait for the official reveal — it's OK, neither can we — take a look at the renderings in our post down below. As always, tune in to Autoblog next week for a front-row seat to all the happenings worth following in the automotive industry. Volvo XC40 revealed | Crossover at the crossroads of style and substance 3 ways the Volvo XC40 is a game-changer Genesis G70 First Drive | An arrow to the heart of the Germans 2018 Audi TT RS Drivers' Notes | Five pots of turbocharged honey 2018 Mercedes-AMG GT C Quick Spin | This is the AMG GT you want The Ford Ranger Raptor is real, and this is what it might look like