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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.

Hydrogen could deliver one fifth of world carbon cuts by 2050, industry says

BONN, Germany — Increasing the use of hydrogen in power, transport, heat and industry could deliver around one fifth of the total carbon emissions cuts needed to limit global warming to safe levels by mid-century, a report by the Hydrogen Council said on Monday. To encourage industries to use hydrogen, Toyota and Air Liquide helped set up the Hydrogen Council, a global lobby launched in January this year. Its 27 members include automakers Audi, BMW, Daimler, Honda and Hyundai, and energy firms such as Shell and Total. The council said using hydrogen for transport, energy generation, energy storage, industry, heat and power could cut annual carbon emissions by 6 billion tonnes by 2050. "This would ... contribute roughly 20 percent of the additional abatement required to limit global warming to two degrees Celsius," the council said in a report released on the sidelines of a U.N. climate conference in Bonn. To achieve a two-degree limit this century agreed by governments in Paris in 2015, the world must reduce energy-related carbon emissions by 60 percent by 2050. The report said one in 12 cars sold in California, Germany and Japan were expected to be powered by hydrogen by 2030. By 2050, hydrogen could power 400 million cars, 15 million to 20 million trucks, around 5 million buses, a quarter of passenger ships and a fifth of non-electrified train tracks, as well as some airplanes and freight ships. Achieving this shift in transport and other sectors would require investment of $280 billion by 2030, with about $110 billion to fund hydrogen output, $80 billion for storage, transport and distribution, and $70 billion to develop products. Fuel cell vehicles combine hydrogen and oxygen to produce electricity to power an electric motor, producing water as a byproduct. However, making hydrogen from fossil fuels, a common route, also produces some greenhouse gas emissions. So far the take-up of hydrogen vehicles is tiny and industry experts say their wider use is years away, with high purchase prices and a lack of refueling stations the major barriers. But some firms, such as miner Anglo American and carmaker Toyota, are pushing for fuel cell cars to play a role even with the rise of battery-powered electric vehicles (EVs). Woong-chul Yang, vice chairman of automotive research and development at Hyundai said EVs and hydrogen fuel cell cars were needed because EVs were better for city driving and fuel cell vehicles better for longer journeys.

Hybrids to slowly replace diesels at Mercedes

German automakers have had some success bringing diesel-powered vehicles in America in recent years, but that may not last much longer. A product planner from Mercedes-Benz we spoke to in Austria apparently believes hybrid setups may be more favorable in the long run, and electrified hybrids will eventually replace oil burners. That's why most every concept car we've seen in the last few years features some sort of hybrid or plug-in hybrid setup while there have been very few diesels. "Yes, diesel is technically complex, and very expensive. The additives to reduce particulate matter are very costly. You'll see more hybrids to meet the changing regulations," according to our source. We've seen this exact scenario play out with Mazda, which has struggled to bring its 2.2-liter diesel engine to America, citing the costly process to reduce emissions in order to meet California-level standards while still maintaining suitable performance for the US market. It's certainly interesting that this news comes hot on the heels of revelations that VW, the automaker that offers the most diesel-powered models in the US, was found in violation of emissions rules on its popular 2.0-liter TDI engine. New Mercedes GLE Will Have An Active Chassis Mercedes has launched an all-out product offensive in the last two years, but the product planning think tanks in Stuttgart have a few surprises in store, too. While Benz has just launched its new GLE SUV family, GLE product planners are already hard at work on the next-generation – yes, a good 5-6 years away – and tell us it will evolve to boast new chassis technology, "something that doesn't exist today." The next-GLE is codenamed 167 – the previous ML (now replaced by the GLE) was internally referred to as 166 – and the GLE planner we recently talked to calls the platform an "active chassis." He further alluded that the next version could be electrified. Currently, the only aspect of the GLE's chassis that is 'active' today are the hydraulic pumps on the roll bars, he said. Many of Mercedes' models can already be had with an adaptive air suspension, multiple selectable driving modes, and other features that were rare or nonexistent just a couple generations ago. One More Compact Crossover On The Way The planner said we can also at least one more all-new, forthcoming compact crossover to be built on the GLA platform. In addition to the GLA, that architecture is currently shared by the A-Class, B-Class, and CLA-Class models.