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2015 Mercedes-Benz ML400 Quick Spin

Mercedes-Benz has taken a risk in its quest to downsize its engine range. For 2015, the brand's popular M-Class five-passenger CUV did away with its trusty 4.4-liter, twin-turbocharged V8, and has replaced it with a 3.0-liter, twin-turbocharged V6. It's no surprise that power is down thanks to this move. Outputs of 402 horsepower and 443 pound-feet of torque are replaced by 329 hp and 354 lb-ft, but weight is down significantly as well. The new ML400 is nearly 300 pounds lighter than the 4,982-pound ML550. Will that tradeoff be enough to satisfy a buying public that's embraced falling fuel prices by buying bigger and thirstier vehicles? To find out if the blown V6 is a suitable replacement for the twin-turbo V8, we spent a week at the helm of the all-new ML400. Driving Notes This 3.0-liter, twin-turbocharged V6 is the same engine being offered in the C400 and E400 sedans. Typical of today's turbocharged engines, peak torque is spread lavishly across the rev range, from 1,600 to 4,000 rpm. That's not as generous a spread as the ML550, which offers all its torque between 1,600 and 4,750, but the power on offer is easy to access. Importantly, the new V6 never feels flat-footed or unable to answer our commands. In fact, the ML400 feels even quicker than its six-second sprint to 60 would indicate, although it's not so fast as to challenge the 5.3-second time of the ML550. After a slight and expected bout of turbo lag, the power arrives suddenly and proceeds linearly until just south of the engine's 6,500-rpm redline. The throttle response is soft in Eco mode, as expected, but sharpens up slightly when the fuel-sipping mode is off, where the gas pedal is still easy to modulate. It's a quiet engine, too. Compared to the brawnier exhaust note of the old ML550 or the howling six-cylinder in the BMW X5 xDrive35i, the ML400's note is smooth and refined, befitting of a V6. Its turbocharged nature is instantly noticed, though. Get on the throttle and the 3.0-liter happily hisses its way up the tachometer. But, it's only when you get on the throttle hard that the engine really weighs in. In day-to-day driving and traffic its soundtrack is unobtrusive and relaxed. The EPA rates the ML400's fuel economy at 18-miles-per-gallon city and a 22-mpg on the highway. That's better than the 14 city and 19 highway of the old V8 ML, but it still seems a bit low, especially for the highway figure.

Mercedes confirms first AMG Sport models for Detroit

If you're looking for a sportier Mercedes-Benz but can't quite make the leap to a full-on AMG model, we've got some good news for you: the German automaker is about to expand its performance portfolio with a more accessible AMG Sport range. Set to bridge the gap between a standard Mercedes fitted with an AMG Sports package and a complete AMG performance variant, models in the the new AMG Sport line will feature upgraded engines, suspensions and brakes. They'll even have "all-wheel drive as standard in selected markets" (almost certain to include ours). Affalterbach has confirmed that the first two AMG Sport models will debut at the upcoming Detroit Auto Show in January. Though it's not saying which models will hit the stage, the teaser image above suggests that one of them will be the new MLC crossover coupe (or whatever it'll be called under the new nomenclature), while the other is almost certain to be the new C450 AMG Sport sedan. The launch of the AMG Sport line is part of the brand's effort to double its 2013 sales figures by 2017 to top over 40,000 units per year globally. With the AMG Sport line joining the standard AMG and AMG S models, the sub-brand is considerably expanding its product portfolio to cater to more customers and budgets, and will give Mercedes a vehicle range to challenge Audi S models and the BMW M Performance range. MERCEDES-AMG UPS THE ANTE - Growth strategy aimed at new market segments - Doubling of global sales targeted by 2017 - Premiere of the new AMG Sport models at the North American International Motor Show in Detroit Affalterbach - The sports car and high-performance brand Mercedes-AMG will achieve a new sales record of well over 40,000 units globally this year. Its entry into the compact segment and the broadening of its product range have provided the Affalterbach-based company with access to new customer groups and secured success in established and new markets. New models developed entirely in-house, such as the SLS AMG and, more recently, the Mercedes-AMG GT, consolidate the brand's success story and place it firmly on course for sustained growth. "We are proud of these successes, as they provide the basis for the next stage of our growth strategy, which we are now launching," explains Tobias Moers, Chairman of the Board of Management of Mercedes-AMG GmbH.

8 automakers, 15 utilities collaborate on open smart-charging for EVs

We're going to lead with General Motors here. GM is one of eight automakers working with 15 utilities and the Electric Power Research Institute (EPRI) at developing a "smart" plug-in vehicle charging system. Why did we start with GM? Because it's the first automaker whose press release we read that mentioned the other seven automakers. Points for sharing. For the record, the collaboration also includes BMW, Toyota, Mercedes-Benz, Honda, Chrysler, Mitsubishi and Ford. The utilities include DTE Energy, Duke Energy, Southern California Edison and Pacific Gas & Electric. The idea is to develop a so-called "demand charging" system in which an integrated system lets the plug-ins and utilities communicate with each other so that vehicle charging is cut back at peak hours, when energy is most expensive, and ramped up when the rates drop. Such entities say there's a sense of urgency to develop such a system because the number of plug-in vehicles on US roads totals more than 225,000 today and is climbing steadily. There's a lot of technology involved, obviously, but the goal is to have an open platform that's compatible with virtually any automaker's plug-in vehicle. No timeframe was disclosed for when such a system could go live but you can find a press release from EPRI below. EPRI, Utilities, Auto Manufacturers to Create an Open Grid Integration Platform for Plug-in Electric Vehicles PALO ALTO, Calif. (July 29, 2014) – The Electric Power Research Institute, 8 automakers and 15 utilities are working to develop and demonstrate an open platform that would integrate plug-in electric vehicles (PEV) with smart grid technologies enabling utilities to support PEV charging regardless of location. The platform will allow manufacturers to offer a customer-friendly interface through which PEV drivers can more easily participate in utility PEV programs, such as rates for off-peak or nighttime charging. The portal for the system would be a utility's communications system and an electric vehicle's telematics system. As the electric grid evolves with smarter functionality, electric vehicles can serve as a distributed energy resource to support grid reliability, stability and efficiency. With more than 225,000 plug-in vehicles on U.S. roads -- and their numbers growing -- they are likely to play a significant role in electricity demand side management.