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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.

2016 Mercedes S-Class Cabriolet airs out the good life

Mercedes-Benz has finally dropped the top on its range-topping model, the long-lived S-Class. The new cabriolet takes the handsome, sophisticated good looks of the hardtop model and adds a three-layer canvas roof that can be lowered or raised in just 20 seconds. On top of the unlimited headroom, the new S-Class Cabriolet adds Mercedes' popular AirScarf neck-warming system, as well as a new nine-speed automatic transmission on the S550 model. As we previously reported, the S63 AMG will continue to use the seven-speed AMG Speedshift transmission. Both cars match their hardtop and four-door counterparts in terms of output. On top of AirScarf, Mercedes also fitted the Thermotronic climate control system. It uses 12 sensors and 18 actuators to measure a wide array of metrics, all in the pursuit of keeping the cabin temperature at the driver's ideal temperature. Scroll up for our full gallery of photos of the new S-Class Cabriolet from the floor of the 2015 Frankfurt Motor Show. We also have the official press release from Mercedes down below. Check them out. The new Mercedes-Benz S-Class Cabriolet Open-top luxury Stuttgart. The new S-Class Cabriolet is the fourth variant of the current S-Class family in the U.S. market and the first open-top flagship four-seater from Mercedes-Benz since 1971. It offers a distinctive, sensual and exclusive design, the cutting-edge technology of the S-Class and a comprehensive warmth and wind protection concept which includes intelligent climate control for convertibles. The elegantly sporty model will have its world premiere at the Frankfurt International Motor Show in September. Also on display in Frankfurt will be a superlative dream car from Mercedes-AMG in the guise of the S63 4MATIC Cabriolet. Its 5.5-liter V8 biturbo engine offers an output of 577 hp and peak torque of 664 lb-ft, AMG Performance 4MATIC all-wheel drive with rear-biased torque split as standard and acceleration from 0 to 60 mph in 3.9 seconds. "After 44 years we are once again able to offer Mercedes aficionados an open-top car in the S-Class. The new S-Class Cabriolet symbolizes our passion for individual and timelessly exclusive mobility, which we share with our customers," remarks Ola Kallenius, Board Member of Daimler AG, Mercedes-Benz Cars Sales. The new S-Class Cabriolet is exceptionally rigid.

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.