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2015 Mercedes-AMG C63 S First Drive [w/video]

As I mashed the throttle heading into the back straight of a nearly three-mile-long race track, I couldn't help but center my mind on two ostensibly disparate subjects: physics and pistons. If the heart of an automobile is its engine, the heart of the engine are its rotating bits – the crankshaft, pistons and the block they're nested inside. It seems fitting, then, that the internals of the twin-turbocharged 4.0-liter V8 typify the brand-new 2015 Mercedes-AMG C63 sedan I found myself piloting in Portugal. Whereas the last C-Class AMG availed itself of a brute of an engine, employing 6.2 liters of displacement to make its 451 horsepower the old fashioned way, the latest AMG's V8 engine has been downsized radically. I had the opportunity earlier in the day to actually hold the pistons of the new 4.0 Biturbo V8 in my hands, alongside those of the outgoing 6.2. The difference in size is staggering, the new lumps looking downright picayune in comparison to the latter. These eight seemingly diminutive pistons turn combustion into crankshaft-spinning power inside a block that is smaller, lighter and more compact than I'd have thought possible, considering the prodigious output the engine spits out. I had gone into this assignment expecting to pen an ode to lost love; a sonnet of sorrow bemoaning the switch from massive cylinders to wheezing power adders. But I was wrong. In fact, the report that follows may indeed read a little like a love song, except it will heap praise not on what used to be, but instead on what is now possible. The new heart of AMG more than makes up for its reduction in size by relying on turbochargers and smart engineering to turn just 4.0 liters into 469 horsepower and 479 pound-feet of torque starting at just 1,750 rpm, or as much as 503 ponies and 516 lb-ft in uprated S guise. Foot to the floor, eyes focused on the turn ahead, a hard right-hander named Primeira that requires hard braking and quick reflexes, I had a fleeting moment of clarity: These are some hard-working pistons. A few days on the street and track in and around Faro, Portugal, has convinced me that the new Mercedes-AMG C63 is a better car in any meaningful measurement than it was before. And I'll go one step further. Not only is this the best C-Class AMG ever, it's also my new favorite in the hotly contested segment that includes such knee-benders as the BMW M3 and M4.

Mercedes Sprinter updated to take on Ford Transit, Ram ProMaster

By the end of this year, the Mercedes-Benz Sprinter will be the second-oldest nameplate in its segment here in the States, but with hot new competition waiting in the wings, Mercedes-Benz is giving its hauler a freshened look and more equipment to stave off rivals. The Sprinter was a pioneer in bringing Euro-style delivery vans to North America, and it's inspired others to transplant their Continental offerings, with the all-new Ford Transit and Ram Promaster models launching shortly. It will also continue to do battle with lower-cost traditional competitors like the Chevrolet Express and Ford E-Series.
The big Sprinter will thus get a new look to go with more safety features and available technology. While the information released here technically covers the Euro-spec 2013 Sprinter (which goes on sale in September), the US market is expected to get the new Sprinter for the 2014 model year with many of the same features. Some of this new technology includes a Crosswind Assist feature as standard equipment and the availability of Collision Prevention Assist and Blind Spot Assist as optional safety measures - Mercedes-Benz says that all three are firsts for any van in the world. Also added to the updated Sprinter is a new 1.8-liter supercharged gasoline (or CNG) engine producing 156 horsepower, which will complement the line of diesel engines that carry over and help make the Sprinter the first cargo van to meet the upcoming Euro VI emissions standards. Additionally, a lower ride height is said to improve fuel economy and should improve handling while aiding ingress and egress for both people and cargo.
In terms of styling, the Sprinter's new face also looks more like the current line of Mercedes-Benz passenger cars. This includes a more upright grille along with changes to the hood, headlights and bumper that lend it a closer kinship to models like the CLS-Class and the updated E-Class. The Sprinter will offer both halogen and HID headlights, while the latter will get LED running lamps and offer Highbeam Assist. The images shown here only reveal the exterior from front angles, but it looks like few, if any, changes have been made to the rear of the van. Interior upgrades include a thicker steering wheel, a new shift lever and the latest in audio, navigation and entertainment systems. Scroll down for the official press release for the new Mercedes-Benz Sprinter.

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.