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2015 Mercedes-Benz GLA250 4Matic Quick Spin [w/video]

Certain expectations come with the name "Mercedes-Benz." We picture cars with luxuriously appointed interiors, fashionable exteriors, Autobahn-worthy performance, and a ride that delivers an optimal balance between agility and outright comfort. Expectations, though, are no friend to the GLA250. This is a car that is deeply confused as to its purpose in life – can it be a proper Mercedes-Benz while still being a reasonably priced, subcompact crossover? After a week behind the wheel, we believe the two are mutually exclusive. Driving Notes The exterior styling is similar to the not-for-America A-Class hatchback, with the only major differences found on the rear end. That means that even with its flashy 19-inch AMG wheels and sport body styling – more aggressive front and rear fascias – the GLA is a stylish piece. We might even call it cute. Considering our 4Matic model's reasonable $34,225 starting price, the interior treatment is both attractive and uses mostly quality finishes. The matte Satin Light Brown Poplar wood ($325) covers a large portion of the dash, while the real metal found on the air conditioning vents is elegant and handsome. There is a lot of plastic in the cabin: It's soft on the dash, and switches to a piano-black finish in spots, but the center console and door finishers don't feel like they came from the Mercedes parts bin. In general, the GLA's cabin feels roughly equal to that of the Audi Q3 and BMW X1 – nice, but a step lower than what we've come to expect from Mercedes. The two-piece, leather-lined seats look great, but even with standard 14-way adjustability, they lack support. The bottom cushion is very flat, and doesn't support the legs. For this author, that's a recipe for near-constant back pain. That said, the chairs do look good, especially in the brown of this test car. The GLA250, like a few other models in the Mercedes range, uses a 2.0-liter, turbocharged four-cylinder, delivering a weak 208 horsepower. It makes up for that shortcoming with 258 pound-feet of torque from 1,250 rpm to 4,000 rpm. On paper, this sounds good, but in the real world, the 2.0T's power is tough to access. That's due more to the shortcomings of the seven-speed dual-clutch automatic than the engine itself. With three modes – Eco, Sport, and Manual – we thought we'd find at least one that could serve up precise downshifts.

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.

Xcar spools up the Mercedes-AMG GT

Xcar has sampled its fair share of high-performance machinery. And a fair few of them have come from Stuttgart and its satellite in Affalterbach. The British video crew had yet to sample the new Mercedes flagship, but it takes care of that in this latest installment. That's right, it's time to check out the new Mercedes-AMG GT. AMG's new twin-turbocharged halo car has a tough act to follow, hitting the scene in the wake of the celebrated Mercedes SLS AMG, what with its gullwing doors and big atmospheric V8. But even with those big, wide rubber shoes to fill, Xcar finds there's plenty to love in the new AMG GT – particularly in the exhaust note, which is far from a given from a forced-induction engine. And with as much as 503 horsepower on tap, Xcar aptly points out that it's as potent as many a supercar from just a few years ago. Yet it's far more reasonably priced – in relative terms, that is. It's enough to not only put BMW's M and Audi's Quattro divisions to shame, but put Porsche on notice in the process. And therein lies the vital question: is it better than a 911? Even a 911 Turbo? That's the answer that Xcar seeks to find in this latest video, but you'll want to watch it for yourself to see what conclusion they've reached. Related Video: