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2017 Mercedes-AMG C63 Coupe unleashed with 503 hp [w/video]

The Mercedes-AMG C63 Sedan is a truly fantastic car. The recently revealed Mercedes-Benz C-Class Coupe is a seriously pretty two-door. Combine the two, and you get the 2017 Mercedes-AMG C63 Coupe that'll debut at the Frankfurt Motor Show next month. The AMG C63 Coupe takes everything we love about the sedan and puts it into the sleeker coupe body. It's equal parts aggression and elegance, and it's got the performance and luxury substance to back up both of those attributes. Under the hood is the same twin-turbo, 4.0-liter V8 as the C63 sedan, with two different states of tune. Standard C63 models get 469 horsepower and 479 pound-feet of torque, while the C63 S ups those numbers to 503 and 516, respectively. Running to 60 miles per hour takes 3.9 seconds in the standard car or 3.8 seconds with the S, and the coupes are limited to either 155 or 180 miles per hour, depending on specification. Both versions of the C63 use Mercedes' AMG Speedshift seven-speed automatic transmission. Inside, it's all C-Class Coupe, which is to say, it's lovely. Same goes for all of the ride and handling bits – there's no doubt in our mind that the C63 Coupe will be just as much fun as its four-door sibling on both road and track. We'll see the AMG C63 Coupe next month, but American deliveries won't start until the summer of 2016, hence the 2017 model year designation. We're licking our chops in anticipation. The sportiest C-Class ever Mercedes-AMG is setting another milestone in the brand's history: the new 2017 AMG C63 Coupe is the next step on the way to more technical and visual distinctiveness. The far-reaching technical modifications are evident at first sight: strikingly flared front and rear wheel arches, an increased track width and larger wheels give the C63 Coupe a muscular look while also providing a basis for highly agile longitudinal and lateral dynamics. The brand's typical "Driving Performance" is also taken to new heights with the C63 Coupe. The AMG 4.0-liter V8 biturbo engine, with 469 hp in standard trim or 503 hp in the C63 S, is a completely in-house development from Affalterbach. In addition, the sophisticated AMG RIDE CONTROL suspension with electronically controlled shock absorbers, the set-up of the AMG DYNAMIC SELECT transmission modes, the rear-axle limited-slip differential and the dynamic engine mounts have all been developed by AMG. The C-Class is Mercedes-AMG's best-selling model and forms the backbone of the company's success.

Automakers' sound systems: Crank it, don't yank it

Years ago, one of the first things most music lovers did after buying a new vehicle was drive to an aftermarket stereo shop to get the crappy stock components swapped for better gear. And you'd typically get not only better sound but also more bang (and boom) for your buck. But in the past decade or so, the overall quality of OEM audio has dramatically increased, while car electronics became more complex, removing the incentive for most new vehicle owners — and all but the most hardcore DIYer — to start from scratch. In 2010, I did a comparison of the average costs for OEM electronics vs. similar offerings from the aftermarket, and back then automakers' stock premium systems were by far the best bargain — and are probably an even better value now. The premium 14-speaker, 1,200-watt JBL system in the all-new 2019 Toyota Avalon is a prime example of this trend. It's standard on the top two Limited and Touring trims and is available as a $680 audio upgrade on the XLE and XSE. I doubt you can even buy 14 speakers and 1,200 watts of amplification from the aftermarket for 700 bucks, much less have it all installed. And because the system is bundled with Toyota's Entune infotainment system, Apple CarPlay and a surround-view camera, removing the head unit means you would likely lose these features. Another advantage of OEMs and their audio partners is they can design the car around the audio system. In the past, automakers would typically place speakers where convenient for packaging, not for optimal sound reproduction, and audio engineers were forced to compromise. But as with the Avalon's premium JBL audio system, this is starting to change. At a recent behind-the-scenes peek for media into the process of developing the system, Toyota and Harman engineers delved into the minutia of sealing the inner panel of the front doors to create an enclosure for 6x8-inch woofers, making space in the pillars for JBL horn tweeters and extensively measuring the acoustic properties of the interior to tune the sound to the space. I'm met some creative and skilled car stereo installers, but none with a degree in psychoacoustics. The system is also the first to feature Quantum Logic Surround that creates a multi-channel listening experience from two-channel sources. And it includes Harman's Clari-Fi processing that "rebuilds key details lost" in compressed audio formats used by streaming music services and MP3s.

Ultra-rare Maybach 57S Coupe ordered new by Moammar Gadhafi is for sale

One of Maybach's rarest 21st-century cars is for sale in Holland, and it owes its existence to one of the most controversial African leaders in recent history. Dutch exotic car dealer Auto Leitner listed a Xenatec-built Maybach 57S Cruisero coupe ordered and customized by Colonel Moammar Gadhafi but built after his death. Short-lived German coachbuilder Xenatec chose to start with the short-wheelbase 57 rather than with the longer and more stately 62. It didn't alter the sedan's length or wheelbase; instead, it created the Cruisero by extending the front doors, removing the rear doors, and adding more rake to the roof pillars. Several other minor visual tweaks set the coupe apart from the sedan, and the interior was given a more superficial makeover. Xenatec made no mechanical modifications, so power comes from an AMG-built 6.0-liter V12 twin-turbocharged to 604 horsepower and 738 pound-feet of torque. It spins the rear wheels via a five-speed automatic transmission. Although the coupe weighs 6,000 pounds, it takes five seconds to reach 60 miles per hour from a stop. The 57S Coupe was not a hefeweizen-fueled hack job haphazardly welded together in a shed. It was authorized by Daimler, and it was engineered to the same standards as the regular-production car. Executives were confident that they could sell 100 units to politicians, entrepreneurs, oligarchs, and other wealthy people around the world, but Xenatec filed for bankruptcy and closed after making only eight when one its main investors, a Saudi Arabia-based company named Auto Kingdom, abruptly stopped funneling money into the project. Gadhafi configured Auto Leitner's 57S Coupe, which was the fourth one built, and he should have taken delivery of it in 2012, but the Libyan Civil War that erupted in 2011 and ultimately led to his death on October 20 of that year derailed those plans. It was instead sold to another buyer whose identity is unknown. What's certain is that the person who ended up with Gadhafi's Maybach rarely drove it: its odometer shows about 1,429 miles. Highly optioned, this 57S is equipped with 20-inch wheels, soft-close doors, heated and massaging individual rear seats separated by a fridge, rear tray tables, front and rear air conditioning systems, a rear-seat entertainment system, and, for good measure a fire extinguisher.