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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.

The first trailer for Top Gear's 24th season shows a hands-free drag race

In the excitement over Amazon's new motoring show, it's important to remember that there's a certain series from the BBC that's attempting to get its mojo back for a 24th season. Yes, we're talking about Top Gear. Since Chris Evans' departure earlier this year, Top Gear news has been relatively sparse, particularly as The Grand Tour and its hosts Jeremy Clarkson, James May, and Richard Hammond seized headlines. But on Christmas, watchers of the series' YouTube channel caught a glimpse of the first scene from the next season. Featuring hosts Matt LeBlanc, Chris Harris, and Rory Reid in what looks like a trio of old, dilapidated cars. We're thinking TG is running a taxi comparison. There's a London black cab and a Mercedes-Benz W210 – a favorite of European cabbies – but we aren't sure where Harris' boxy wagon fits in. Did the Volvo 850 Estate ever serve as a livery vehicle? But it's the basis for this comparison that's weird, because the hosts appear to be having a no-hands drag race. The cars veer off in different directions, traveling across what looks like a snow-covered dirt lot. We're assuming hilarity ensues. And while we don't quite know what they're hoping to accomplish, we are looking forward to watching it go down. Top Gear's 24th season doesn't have an official air date, and the video ends only with a cryptic "Coming Soon." Expect to hear more in the next few months.

Production Mercedes GLC Coupe coming in 2016

If the Mercedes-Benz GLC Coupe Concept from this year's Shanghai Motor Show caught your eye, we've got good news. The company confirmed that this model will enter production, and we should see the road-going model early next year, probably at the New York Auto Show. Dr. Gunnar Guthenke, Mercedes' G-Class boss, confirmed this during an event following this week's Frankfurt Motor Show. He's particularly proud of how Mercedes has expanded its crossover and SUV lines, and the addition of the BMW X4-fighting GLC Coupe only proves further commitment to this growth. The numbers don't lie – Mercedes' crossover and SUV sales are up 25 percent this year, compared to 2014 numbers. Even Mercedes' halo of SUVs, the G-Class, is experiencing increased sales. The company set a record for G-Class sales in 2014, and is on track to do it again this year; sales are up roughly 20 percent. For 2016, the G-Wagen gets a number of enhancements, including a 4.0-liter, twin-turbo V8 as the new base engine. Other markets get a new diesel engine for 2016, and more updates are on the way. "Our legend has a bright future," Guthenke said. We'll have a full review of the updated G550 next week, so stay tuned.