2008 Mercedes-benz Cl63 Amg Base Coupe 2-door 6.3l on 2040-cars

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Why it's difficult to accurately test the efficiency of a plug-in car

When it comes to electric vehicles and plug-ins in general, the Environmental Protection Agency-certified range is a hugely important number. While actual range anxiety is largely psychological, the magic number does provide a point of comparison of buyers considering one EV over another. The driving distance is also often touted by automakers when marketing their models. Unfortunately, as Green Car Reports finds in a recent deep dive, the way the EPA calculates the figure is a convoluted mess, and discovering the reasons why is definitely worth the read. The issue isn't about bad science but instead comes down to vague wording. The EPA's accepted range test is sourced from an evaluation called J-1634 from the Society of Automotive Engineers, and it seems to provide balanced results for vehicles that automatically reach a single state of charge when plugged in. However for models with multiple charge settings, the situation gets complicated very quickly. Of course, these modes are often created in the software, meaning that a car's certified driving distance can change with just a few taps of the keyboard without the real world results owners might experience actually changing. By showing the test's effects on the certified range for the Tesla Model S, Nissan Leaf and Mercedes-Benz B-Class Electric Drive over the last few years, Green Car Reports makes a compelling argument that it's the evaluation that needs to change. Thankfully, it appears that the solution is a very simple one. Get the details here.

Mercedes teases a new Maybach concept convertible

Once again, Mercedes is taking a Vision concept to the Pebble Beach Concours this year. To start generating excitement, the company has released a teaser trailer for the car, and effectively no other information. But we think we've pieced together what the car is. Let's look at the video first. It shows a voluptuous blue body. It's all curves and clean lines inside and out. It also has an impressively prodigious prow with a proud three-pointed star at the front. The interior is all white with very little detail, and in addition to chrome, there are many copper trim pieces. There appear to be only two seats, too. Toward the end, we see a strip of copper trim on the outside as well, and just before the shot changes, we can see a bit of white interior that indicates this is a convertible. So we know this is an elegant, luxurious roadster. Is there anything else we can discern? Well, it seems Mercedes may have accidentally revealed the name of the car, or at least what it's based on. The video's file name includes the words "Maybach six." That happens to be the name of last year's Mercedes-Maybach coupe concept. On top of that, there's a striking resemblance between the long, flowing hoods of both cars. So it seems like a pretty safe bet that Mercedes will show the convertible version of that car, which was 18 feet long, and produced 738 horsepower from a quartet of electric motors. We'll find out if we're right when the car is revealed at Pebble Beach. Related Video: Image Credit: Mercedes-Benz Design/Style Maybach Mercedes-Benz Technology Emerging Technologies Convertible Concept Cars Electric Luxury Pebble Beach

2021 Mercedes-Maybach S 580 revealed as the biggest, most luxurious S-Class

The Mercedes-Maybach GLS-Class made a splash recently as the company's ultra-luxury crossover. But if you're a well-heeled individual looking for the true peak of Mercedes luxury, there's no replacement for the 2021 Mercedes-Maybach S 580, the biggest, fanciest sedan the company can produce. You'll be able to identify the land yacht thanks to a number of styling tweaks. The grille gets slender vertical chrome bars, and the lower intakes feature a chrome mesh. Topping the grille is a Mercedes hood ornament. The hood is restyled, too, with a center ridge running front to back with a line of chrome trim. Besides these styling tweaks, the Mercedes-Maybach has had its wheelbase stretched a full seven inches, with the space going to rear passenger room. The stretch also included rear quarter windows. Just behind those windows are illuminated Mercedes-Maybach badges. The car can also be optioned with an array of exclusive wheels and two-tone paint. The two-tone paint jobs can take up to a week to complete. Of course, the interior is what really sets the Mercedes-Maybach apart from the "average" S-Class. All examples come standard with Mercedes Designo leather upholstery, and even the headliner is finished in leather. Like other S-Class models, there is an air freshener function, and Mercedes has saved a special scent specific to the Maybach. The front seat backs are covered in wood trim to enhance the design. Rear occupants get individual 11.6-inch screens for entertainment, as well as a removable tablet for controlling various car functions. Passengers get to enjoy a 1,750-watt, 30-speaker Burmester sound system, which won't be interrupted by outside noises thanks to additional sound deadening materials around the rear arches, thicker laminated quarter windows and active noise cancelling. Foam-filled tires and laminated glass around the rest of the car are options. Speaking of options, there aren't many, but they're also quite lavish. The one we expect to be quite popular is the executive rear seating. It replaces the rear bench with two reclining chairs complete with power leg rests. These leg rests even feature massage functions, a first for the S-Class. The seats come with climate adjustments and several massage settings. The option also adds seatbelt airbags and frontal airbags for the rear passengers. Other interior options include a refrigerator, champagne flutes and electrically assisted rear doors for easier entry and exit.