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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.

Fastest cars in the world by top speed, 0-60 and quarter mile

A claim for the title of “Fastest Car in the World” might seem easy to settle. ItÂ’s actually anything but: Are we talking production cars, race cars or customized monsters? And what does “fastest” even mean? For years, car publications have tended to define “fastest” in terms of an unbeatable top speed. ThatÂ’s distinct from the “quickest” car in a Usain Bolt-style dash from the starting blocks, as with the familiar 0-60 mph metric. Professionals often focus on track lap times or elapsed time-to-distance, as with a drag racer thatÂ’s first to trip the beam of light at the end of a quarter-mile; or the 1,000-foot trip of nitromethane-powered NHRA Top Fuel and Funny Car dragsters. Something tells us, however, that you're not seeking out an answer of "Brittany Force rewriting the NHRA record books with a 3.659-second pass at a boggling 338.17 mph." For most barroom speed arguments, the focus is firmly on cars you can buy in showrooms, even if many are beyond the financial means of all but the wealthiest buyers and collectors. Here are some of the enduring sources of speed claims, counter-claims, tall tales and taunting dismissals that are the lifeblood of car enthusiasts – now with EVs adding an unexpected twist to these passionate pursuits.   Fastest from the blocks: 0-60 mph Thirty years ago, any car that could clock 60 mph in five seconds or less was considered extremely quick. Today, high-performance, gasoline-powered sedans and SUVs are routinely breaking below 4 seconds. As of today, the 2023 Dodge Challenger SRT Demon 170 crushes all with a 0-60 mph time of just 1.66 seconds. That's simply absurd, but keep in mind the Demon was engineered with the single-minded purpose of going fast in a straight line. It's also important to realize that direct comparisons are difficult, because not all of these times were accomplished with similar conditions (prepped surfaces, adjustments for elevation and so on). The moral here is to take these times with a tiny grain of salt. After the Dodge, the Rimac Nevera comes in with an officially recorded 0-60 mph time of just 1.74 seconds. EVs crowd the quickest list, with the Pininfarina Battista coming in a few hundredths slower (1.79 seconds) than the Nevera and the Lucid Air sapphire (1.89 seconds) right after that. Eventually, you arrive to the Tesla Model S Plaid, which has a claimed 1.99-second 0-60 mph time, though instrumented testing by Car and Driver shows it accomplishes the deed in 2.1 seconds.

Mercedes-Maybach Pullman stretches its way to Geneva

Mercedes-Benz is known the world over for producing luxury automobiles, but even among Benzes there's a hierarchy. The S-Class sits at the top of the Mercedes range, the Maybach at the top of the S-Class, and what you see here sits at the top of the Maybach line. It's the new Pullman limousine, and it arrives on the 50th anniversary of the original. Stretching a massive 21.3 feet, the new Mercedes-Maybach Pullman is even longer than the previous Maybach 62 by a full foot, and a good 3.5 feet longer than the standard-wheelbase Mercedes-Maybach S-Class, or two feet longer than the G63 AMG 6x6. In other terms, it's over a foot longer than the Rolls-Royce Phantom EWB, and the better part of a yard longer than even the Cadillac Escalade ESV. Heck, you could just about fit Benz's other flagship, the Mercedes-AMG GT, inside the new Pullman's 14.5-foot wheelbase. As if that's not enough, it also stands 3.9 inches higher than a standard S-Class to the benefit of its imposing presence and interior space. Should you be so fortunate as to be graced with an invitation to step inside, you'd find an interior entirely clad in leather with four seats: two recliners and two fold-down seats facing backwards. Those principal rear seats can recline between 19 and 43.5 degrees and offer an extensive array of individual adjustments to cater just-so to the occupants' individual preferences. Ingress and egress are enabled by larger rear doors that open in front of – instead of next to – those rear seats to enhance the privacy of the traveling dignitaries, who will be able to monitor the state of affairs through the analog thermometer, speedometer and clock mounted in the roof liner. They'll also enjoy privacy thanks to the electrically operated glass partition wall with an 18.5-inch monitor mounted in front of it and a choice of Burmester sound systems. Long the favorite of heads of state and captains of industry, the new Pullman will be unveiled at the Geneva Motor Show now just weeks away. We don't doubt that Mercedes will offer its customers a choice of engine options (as long as they're capable of motivating the new Pullman's assuredly substantial heft), but most suitable to the task will of course be the 6.0-liter twin-turbo V12 with its 523 horsepower and 612 pound-feet of torque.