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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.

Formula One speeds towards radical thousand-horsepower shakeup

The teams, the drivers, the fans, the circuits... few, if any, were satisfied with how Formula One has shaped up since the current regulations took hold last year. But that doesn't mean they aren't working on it. At a recent meeting of the F1 Strategy Group, the leading parties in the sport outlined a new framework that would radically shake up the cars themselves while keeping costs in check. And the biggest change could see the engines producing around 1,000 horsepower. Although a proposal put forth by Ferrari to ditch the current V6 hybrid engines in favor of new twin-turbocharged units was rejected by Honda and Mercedes, the members of the group approved in principal to increase the fuel flow in the existing engines to dramatically boost output. As it stands, the current 1.6-liter turbocharged V6 engines develop around 600 horsepower, with an additional 160 or so kicked in by the electric Energy Recovery System, for a combined output of about 760 hp. What's not clear at the moment is whether the increased fuel flow would necessitate either the return of mid-race refueling (currently banned) or the installation of larger fuel tanks. Red Bull and McLaren also submitted proposals to radically redesign the shape of the cars as well, however a more evolutionary approach was adopted instead. Though far from finalized, the new design would keep the same basic form of the current chassis, but with adjustments to make them more aesthetically pleasing while producing more downforce. Wider tires are also said to be part of the mix. With more power and more grip from the tires and aero, the resulting cars would most certainly end up going much faster than the current ones, which are already starting to nudge the lap records at some of the circuits, many of which were set during the V10 era. The F1 Strategy Group is made up of representatives of the FIA, Formula One Management and six leading teams. The next step will be for the teams' technical directors to iron out how to implement what their bosses have agreed to. If they settle the details fast enough, the revised regulations could be pushed through in time for next season. News Source: AutosportImage Credit: Mark Thompson/Getty Motorsports Ferrari Honda Infiniti McLaren Mercedes-Benz F1

2017 Mercedes-AMG C63 Coupe unleashed with 503 hp [w/video]

The Mercedes-AMG C63 Sedan is a truly fantastic car. The recently revealed Mercedes-Benz C-Class Coupe is a seriously pretty two-door. Combine the two, and you get the 2017 Mercedes-AMG C63 Coupe that'll debut at the Frankfurt Motor Show next month. The AMG C63 Coupe takes everything we love about the sedan and puts it into the sleeker coupe body. It's equal parts aggression and elegance, and it's got the performance and luxury substance to back up both of those attributes. Under the hood is the same twin-turbo, 4.0-liter V8 as the C63 sedan, with two different states of tune. Standard C63 models get 469 horsepower and 479 pound-feet of torque, while the C63 S ups those numbers to 503 and 516, respectively. Running to 60 miles per hour takes 3.9 seconds in the standard car or 3.8 seconds with the S, and the coupes are limited to either 155 or 180 miles per hour, depending on specification. Both versions of the C63 use Mercedes' AMG Speedshift seven-speed automatic transmission. Inside, it's all C-Class Coupe, which is to say, it's lovely. Same goes for all of the ride and handling bits – there's no doubt in our mind that the C63 Coupe will be just as much fun as its four-door sibling on both road and track. We'll see the AMG C63 Coupe next month, but American deliveries won't start until the summer of 2016, hence the 2017 model year designation. We're licking our chops in anticipation. The sportiest C-Class ever Mercedes-AMG is setting another milestone in the brand's history: the new 2017 AMG C63 Coupe is the next step on the way to more technical and visual distinctiveness. The far-reaching technical modifications are evident at first sight: strikingly flared front and rear wheel arches, an increased track width and larger wheels give the C63 Coupe a muscular look while also providing a basis for highly agile longitudinal and lateral dynamics. The brand's typical "Driving Performance" is also taken to new heights with the C63 Coupe. The AMG 4.0-liter V8 biturbo engine, with 469 hp in standard trim or 503 hp in the C63 S, is a completely in-house development from Affalterbach. In addition, the sophisticated AMG RIDE CONTROL suspension with electronically controlled shock absorbers, the set-up of the AMG DYNAMIC SELECT transmission modes, the rear-axle limited-slip differential and the dynamic engine mounts have all been developed by AMG. The C-Class is Mercedes-AMG's best-selling model and forms the backbone of the company's success.