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Mercedes-AMG to phase out 5.5-liter V8 after next year [UPDATE]

UPDATE: A previous version of this story indicated that AMG's 6.0-liter twin-turbo V12 was still mated to a five-speed automatic transmission, however the latest models (including the S65 AMG sedan and coupe, SL65 roadster and G65 sport-ute are equipped with the newer seven-speed unit. Mercedes also reached out to point out that the 5.5-liter engine will be phased out gradually, not overnight. There's a lot to love about AMG's 5.5-liter twin-turbo V8. It produces as much as 577 horsepower and 590 pound-feet of torque, and delivers blistering performance to even the heaviest of vehicles. But try not to get too attached, because like its 6.2-liter, naturally aspirated predecessor, it's not long for this world. The latest word comes from Autocar, which reports that Mercedes will release the last applications for the 5.5 biturbo within these next two calendar years in the new GLE63 AMG and upcoming S63 AMG convertible. After that, even though it was only introduced in 2011, it will be phased out. Fortunately Affalterbach has a worthwhile successor already in place in the 4.0-liter twin-turbo V8 from the Mercedes-AMG GT. The smaller powerplant, already in store for the new C63, is already producing 503 hp and 479 lb-ft in S spec. That's still shy of the larger unit's output, but where the 5.5 is nearing the end of its production cycle, the 4.0 is just starting out. Of course the 4.0-liter biturbo isn't the only engine AMG is making these days. Smaller models (based on the front-drive platform) employ the 45-designation, high-output 2.0-liter turbo four. Models at the very top of the lineup, however, use a 6.0-liter twin-turbo V12 that may be a dinosaur, but with 621 hp and 738 lb-ft of torque on tap, still can't be beat.

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.

Recharge Wrap-up: Audi's EV SUV to be built in Brussels, Mercedes-Benz to extend EV range

European Union Industry Commissioner Elzbieta Bienkowska is demanding that Volkswagen compensate owners of cars affected by the diesel emissions scandal. She says European customers should receive the same goodwill compensation as American drivers, whom VW is providing with $1,000 worth of recompense. "The issue of compensation goes beyond the difference in the legal setup between the US and the EU and plays a fundamental role in viewing VW as a responsible and trustworthy company," says Bienkowska in a letter to Volkswagen CEO Matthias Mueller. Bienkowska has also requested detailed data about the vehicles and "corrective measures" VW is planning. Read more from Automotive News Europe. Mercedes-Benz will equip its plug-in vehicles with higher-capacity batteries as it expands its electric model range. While the PHEVs it has released so far have electric driving ranges between 14 and 20 miles, better batteries should extend that range starting around model years 2018 or 2019. After releasing a slew of plug-ins by the end of next year, Mercedes-Benz development director Dr. Thomas Weber says, "The next-generation vehicle will overcome the 30-km to 50-km hurdle and then the next generation after that will be 80-100 km when they run as pure electric cars." Read more at Green Car Reports, or from Motoring. Audi will build its pure electric SUV at its plant in Brussels, Belgium. The batteries for the vehicle based on the Audi E-Tron Quattro concept (perhaps to be called the Q6) will also be built at the Brussels plant when production begins in 2018. With this announcement comes news that production of the A1 will shift from Brussels to Martorell, Spain, while Q3 production will move from Spain to Gyor Hungary. Audi says the Brussels facility will "become a key plant for electric mobility at the Volkswagen Group." Read more at Green Car Congress, or in the press release below. Audi production network: ready for electric mobility - Premium manufacturer to produce large series of electric cars in Brussels as of 2018 - New models for Martorell (Spain) and Gyor (Hungary) - Audi CEO Rupert Stadler: "We are increasing our efficiency and bundling key competencies" Audi is preparing its international production network for the mobility of the future. Large series production of the first purely electric driven SUV from Audi will begin at the site in Brussels in 2018. The plant will also produce its own batteries.