2012 Mercedes-benz Slk350 on 2040-cars

Auto blog

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 will still provide V8 engines to Aston Martin

News of Mercedes suspending sales of the vast majority of its V8-powered cars for the 2022 model year hit the presses about a week ago. However, what wasn’t explained then was the fate of Aston Martins with Mercedes-AMG V8 engines. Many Aston Martin products are powered by AMGÂ’s 4.0-liter twin-turbo V8 engine (the M 177 version affecting AMG products), and itÂ’s one of the motors that we reportedly wonÂ’t see in Mercedes-AMG products next year. Since AMG is struggling to fit its cars with its own engine, that brings into question Aston MartinÂ’s supply of V8s. Car and Driver got some answers from Aston, though, and the situation in the UK doesnÂ’t appear anywhere near as dire as in Germany. “Aston Martin confirms that its supply of V8 engines from Aston Martin AG is not affected," an Aston Martin spokesperson told Car and Driver. So there you have it. AstonÂ’s AMG V8-powered vehicles — Vantage, DB11 and DBX — will supposedly carry on sales without interruption. ThatÂ’s great news for Aston Martin and any uber-wealthy folks who intend to buy one.  At the same time, Mercedes isn't completely out of the V8 game for 2022. In fact, it's still selling cars that directly compete with Aston Martin: AMG GT Coupe and Roadster. Those Mercedes products use the M 178 version of the AMG V8 and are reportedly unaffected by supply issues. ThereÂ’s probably even more to this story as time passes, too. Mercedes has yet to officially acknowledge the stoppage of V8s — we reached out for comment when we published our initial story, but havenÂ’t heard confirmation back yet. When we do, weÂ’ll make sure to update you on whatÂ’s going on. Related video:

2015 Monaco F1 Grand Prix race recap [spoilers]

Lewis Hamilton came to Monaco with a new three-year deal with Mercedes-AMG Petronas and a vow to not let anything, including any "mistakes" by teammate Nico Rosberg, stand in the way of his best qualifying effort. Mercedes reportedly made it rain with a 100-million-pound deal, and Hamilton made it rain right back with his first pole position at Monaco. Rosberg did make a mistake but this time it was behind Hamilton, which meant he stuffed-up the qualifying attempts of rival drivers like Sebastian Vettel. So Rosberg starts second, 0.342 behind Hamilton but 0.449 ahead of Vettel in the Ferrari. Daniel Ricciardo thinks he should have been third, but a communication error with his engineers left him in the wrong engine setting for his final hot lap, so by the very first corner he'd lost the time he would have needed to get higher than fourth on the grid. The second Infiniti Red Bull Racing of Daniil Kvyat slots in behind him, ahead of the second Ferrari of Kimi "Not A Very Happy Day" Raikkonen, who just can't get it going lately. Sergio Perez did for the Sahara Force India what the car can't do on its own, which is grab a top-ten qualifying spot. Toro Rosso rookie Carlos Sainz had qualified eighth but missed a call to the weigh bridge, so he's been slapped into the pit lane. Pastor Maldonado in the Lotus inherits his eighth place, ahead of rookie Max Verstappen in the second Toro Rosso, and Jenson Button in the McLaren. Button only got up there because of two penalties: for Sainz, and Romain Grosjean who had qualified 11th but took a penalty for a gearbox change. Want to know how hard it is to do better on race day than in qualifying at Monaco? Even the never-say-die Fernando Alonso said, "Monte Carlo is a train of cars on Sunday, the race finishes on Saturday afternoon." Well obviously, he didn't take Max Verstappen's seek-and-destroy tactics into account. The young Dutchman had made passing look like a real option in Monaco, getting past Maldonado at St. Devote on Lap 7 after a bit of argy-bargy on Lap 6, then taking advantage of blue flags to slink past teammate Carlos Sainz and Williams driver Valtteri Bottas while hiding in Sebastian Vettel's slipstream. He tried the same move on Romain Grosjean on Lap 65, but Grosjean locked him out. Verstappen lined up the Lotus driver over the following laps, then looked like he slipped to the inside at St.