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2016 Mercedes-Benz GLC250 First Drive [w/video]

There's nothing wrong with the Mercedes-Benz GLK other than old age, having first sold here in 2009. But with creased, off-road themed styling, a naturally aspirated V6, and a smallish interior, it's out of step with the company's growing line of sport utility vehicles. Even its name is a harsh-sounding outlier. Enter the 2016 GLC. Mercedes calls this model the second generation of the GLK, but it's closer to a total reboot. The new look follows the smooth design of contemporary Benzes. The spotlight engine is now a spunky turbocharged four cylinder, and yes, the GLC is bigger inside and out. As for the name change, that's part of the latest badge realignment, and the "C" indicates the GLC's position as the crossover counterpart to the C-Class sedan. Now firmly integrated into the Mercedes SUV family, the GLC takes a seat at the table between the entry-level GLA and the larger GLE. The GLC's fresh appearance has all of the tenets of modern Mercedes design. We've come to the Alsace region of France to sample this familiar yet evolved utility vehicle. Driving along route A35, we're immediately struck by the turbo four-cylinder's prowess. It's strong from launches when we mash the gas, returns a subtle but pleasing exhaust note, and it's more than capable of picking off slower moving traffic as we dash through the French countryside. We're driving the European-spec GLC250 model, which has the same 2.0-liter engine Americans will get in the GLC300, though the Euro model has 30 fewer horsepower. The US version will be rated at 241 hp and 273 pound feet of torque, the same output as the C300 sedan. The turbo has big shoes to fill, as it gives up 61 hp to the 302-hp V6 used in the GLK. Mercedes is banking consumers won't miss this raw power, as the GLC's inline-four offers the same amount of torque as the GLK's V6, but much sooner in the rev band. Even in its detuned European state, the I4 demonstrates the kind of urgency that Americans prefer for their grocery-getting people haulers. It's paired with a nine-speed automatic transmission, upgraded from the GLK's seven-speed. There are paddle shifters, though most Americans won't have reason to use them. Sometimes we grab them and lay on the throttle just for fun, and the GLC responds with bursts of speed. Even in its detuned European state, the I4 demonstrates the kind of urgency that Americans prefer for their grocery-getting people haulers.

SRT Viper dukes it out with Mercedes SLS Black Series in new Head 2 Head

In Episode 36 of Motor Trend's Head 2 Head, now that the Corvette ZR1 is no more, Jonny Lieberman has to look overseas to the Mercedes-Benz SLS AMG Black Series for a challenger with similar philosophy to the SRT Viper: long hood hiding a high-horsepower engine set way back, rear-wheel drive, tiny trunks. That puts the Viper's 8.4-liter V10 with 640 horsepower and 600 pound-feet of torque against the SLS AMG's 6.2-liter V8 with 622 hp and 468 lb-ft.
However, the congruences in philosophy and magnitude of numbers doesn't translate to the driving experiences of the two, which are literally and figuratively on different continents. Lieberman gets a handle on the two of them on Northern California roads, Randy Probst then finds out how, and how quickly, they can lap Laguna Seca.
They both get kudos for being improvements on their original sources, but only one of them can take the win. You can find out by watching the video below.

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.