1999 Mercedes-benz Slk230 Kompressor 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.

Super Bowl commercials: Steven Tyler, Emerson Fittipaldi, Keanu Reeves and more

Sunday is Super Bowl LII, which means America will immerse itself in high-calorie potluck fare, garish halftime-show entertainment (Justin Timberlake, bringing sexy back, but not that kind), the most expensive and over-the-top TV ads of the year, and — oh yeah — a football game between two teams connected by Amtrak's Northeast Corridor line. What else you gonna do on the first Sunday of February? As usual, automakers plan big, splashy TV spots to reach all those gajillions of eyeballs glued to the teevee, though the list may be shorter than in previous years. Here's a roundup of what we know is coming. Hyundai Hyundai will test the football/futbol divide with a 60-second spot starring a youth-soccer ref who arrives for the game dramatically and just in time in his 2018 Kona. Only it's Super Bowl Sunday, so he — along with the two coaches, and apparently most of the parents — are eager to get on with their game-day plans. Advantage: football, being the message, we guess. The ad does make a quick plug for Hyundai's BlueLink nav system, but this is only nominally about the car. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Hyundai also plans a 60-second ad that recognizes people fighting pediatric cancers and highlights its own nonprofit organization that focuses on the cause, according to Reuters. Kia This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. The Korean automaker will put Aerosmith frontman Steven Tyler behind the wheel of its new Stinger on an abandoned racetrack. The former " American Idol" host promptly puts it into reverse, going back to his '70s heyday, courtesy of some CGI, to the strains of "Dream On" played backwards. Trotting out an almost-70-year-old to relive some classic rock glory fits the Super Bowl template to a T. Two-time Formula One and Indianapolis 500 champ Emerson Fittipaldi also makes a cameo. It airs in the third quarter. Lexus This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Lexus teams with Marvel Studios to preview its forthcoming movie "Black Panther," which arrives in theaters Feb. 16. In "Long Live The King," the Black Panther, a.k.a. King T'Challa, played by Chadwick Boseman, dispatches some bad guys to recover stolen Vibranium after clinging to the roof of a speeding 2018 LS 500 F Sport, driven by co-star Danai Gurira.

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