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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.

Mercedes partners with Lufthansa to design executive jet cabins [w/poll]

Luxury automakers like to crow about their flagship models boasting first-class cabins, but the truly elite class of travelers know there's a class above that. We're talking about private jets, and now Mercedes is applying its skills to those as well. The German automaker isn't building its own jet aircraft. Its design department has, however, collaborated with Lufthansa to create a cabin space for executive jets that looks even more upscale. The concept integrates the walls, ceiling, and floor of the cabin into one fluid, continuous surface, with the furniture similarly integrated into the design with chairs, sofas, beds, and tables. It's even got a fish tank on board and auto-dimming touchscreen glass panels in front of the windows that can control the infotainment system. The design is being showcased by Mercedes-Benz Style and Lufthansa Technik at the European Business Aviation Convention and Exhibit (EBACE) in Geneva. It's the same show where Brabus displayed its jet cabin design, rival BMW Designworks did the same, and where the Mercedes' Eurocopter cabin design debuted four years ago. There, Mercedes hopes to attract orders from private customers. If the finished product ends up half as stunning as these design renderings look, we don't doubt they'll find a few takers. Mercedes-Benz Style and Lufthansa Technik develop VIP cabin for short- and medium-haul aircraft: State-of-the-art luxury high above the clouds Stuttgart/Geneva, May 19, 2015 In time for EBACE 2015, which will take place from 19 to 21 May 2015 in Geneva, Mercedes-Benz Style and Lufthansa Technik have announced their cooperation on the design and completion of VIP aircraft cabins. The two companies will jointly develop an entirely innovative, luxurious and integrated cabin concept for short- and medium-haul aircraft. Dynamic architecture instead of traditional interior cabin design: Under the joint approach adopted by the two companies, the traditional separation of ceiling, wall and floor will be entirely replaced by a dynamic, spiral layout. This gives rise to new, independent spatial zones without the typical arrangement of seat and wall elements. The new sense of space is additionally reinforced by Mercedes's typically strong emphasis on contrast in terms of material, colour and lighting. The overall design is characterised by the aesthetic appeal of state-of-the-art luxury embodied in the Mercedes-Benz brand.

Top horsepower-per-dollar cars in 2017

Bang for the buck. That quasi-scientific statistic is bandied about by motor heads everywhere from classrooms to barrooms, though the truth of the matter is that it's exceedingly complex to measure. A fair performance-per-dollar index would include something like cross-referencing MSRP (Manufacturers Suggested Retail Price) with point-to-point times on a track or driving route, which is obviously hard to do comprehensively. But, for the sheer joy of talking about cars and playing with a big spreadsheet, there's always the horsepower-per-dollar index, which is more straightforward, albeit hilariously flawed. There are vagaries even with this simple formula, of course: MSRP for vehicles can change at a moment's notice, to say nothing of the bottom-line shifting that happens with local deals or showroom negotiation. For this list we're running with the straight MSRP wherever possible, and as recently reported as we can get it. All the vehicles on this list are 2017 models, and all trims are reported where the lowest price and differing power levels intersect. Some choices were made for personal preference and some for sanity, avoiding things like all 48 trim levels of the Ford Transit, all with the same horsepower). If this list were a simple top ten, or even a top fifty, you'd be bored to tears with all the red, white and blue that is represented. Following perfectly with conventional wisdom, American cars really do lead the world where hp/$ is concerned. So, for the sake of variety (and the sheer joy of seeing a minivan 'win' one round of this thing) I've sorted out some top five and bottom five lists for broad power categories. Let's dive in. Less Than 100 Horsepower Okay, okay, this is hardly a category we'll grant you. But we've often tried to click off all the sub-100-hp cars on sale in the US, and making this list gave us an excuse. It also illustrates that none of these smallish vehicles bring cheap horsepower to the table - for that you'll need a motorcycle. The segment-leading Chevy Spark (above) asks just over $139 for each hp, and that Smart Fortwo Electric Drive has hp on sale for about the same price as its very distant family cousin, the Mercedes-Benz SL65 AMG (insert your favorite Smart joke here... we know you want to).