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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.

Race recap: 2015 Abu Dhabi Grand Prix is Germany rising as sun sets

Mercedes-AMG Petronas driver Nico Rosberg Rosberg doesn't attribute anything mystical to the form that got him ahead of teammate Lewis Hamilton. He said simply, "Before it was close in the other direction, now it's close in this direction." Mercedes non-executive chairman Niki Lauda went further, saying Rosberg's "brain has switched." Under the desert spotlights it switched so far ahead that Lewis Hamilton qualified nearly four tenths behind the German. Kimi Raikkonen flew the scarlet for Ferrari in third position. Being three spots ahead of Valtteri Bottas gave Raikkonen a huge advantage in locking up fourth position in the driver's championship. Even if he doesn't care about it, as he's publicly stated, Ferrari probably does. Teammate Sebastian Vettel was classified 16th after the German slowed down after making a mistake on his final hot lap, and neither he nor his engineer realized how quickly times were falling on a cooling track. He'd be promoted to 15th when Lotus driver Romain Grosjean was penalized for a gearbox change. Sergio Perez knocked it out of the park for Sahara Force India, claiming fourth ahead of Daniel Ricciardo in fifth for Infiniti Red Bull Racing. Williams driver Bottas was in sixth, in front of the second Force India of Nico Hulkenberg and the second Williams of Felipe Massa in eighth. Daniil Kvyat ensured both Red Bulls were in the top 10 with his ninth position, and Carlos Sainz got the upper hand in qualifying over his Toro Rosso teammate Max Verstappen for the final time this year, rounding out the top 10. Beyond Nico Rosberg's mind, one of his weaknesses was his slow starts. Those are stronger, too, the German tearing off away from the field when the lights went out. Hamilton bogged enough to have to defend from Perez behind, the Mexican trying to slide between Hamilton and Raikkonen on the run to the first corner. Rosberg held the lead into Turn 1 and likewise held it through Turn 21 on the last lap of the race, only ceding it during pit stops. Rosberg's 14th victory gets him level with Graham Hill on the wins list – on the anniversary of Hill's death in a plane crash – and marks the first time in his 10-year F1 career that he's won three races in a row. More proof of his strength: the last few races we haven't heard Rosberg ask for regular updates about what Hamilton's doing, he just drives. Hamilton gave it his best but that wasn't enough.

2015 Mercedes-Benz GLA priced from $31,300*

Mercedes-Benz has kindly let loose the price of the 2015 GLA-Class, telling Autoblog.com that the base 208-horsepower GLA250 in two-wheel drive will go for $31,300 *not including a destination charge of $925. That makes for $32,225 in total to get one off the lot, a price predicted as early as last year and in our recent First Drive. The other two available models can push power to all four wheels, and after the destination fee is applied the GLA240 4Matic (pictured) will be $34,225 while the 355-horsepower GLA45 AMG will change lives and wallets to the tune of $49,225.
On the base scale, that puts the GLA250 just a few hundred dollar bills above the more powerful, rear-wheel drive BMW X1 and a stack of hundreds below the less powerful, front-wheel drive Audi Q3. If you're keeping in-house score, the GLA250 comes in at $1,400 above its sedan platform-mate with the same engine, the CLA250. At the high end, however, the competition doesn't have anything that can touch the AMG trim. Not that it should matter all that much - Mercedes needed something to keep these buyers in the family, and now they have it. If any of them should need even more power and more money spent, then there's always that 394-hp Brabus flavor. We'll have more info and details on each trim when Mercedes unleashes the shebang in the not-too-distant future.