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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.

Cadillac ATS-V and Mercedes-AMG C63 S pitted Head to Head

Our favorite (and only) Autoblog-alum-turned-Motor Trend staffer is back with another Head to Head video, this time pitting the Cadillac ATS-V with the Mercedes-AMG C63 S. This performance machine shootout is ostensibly a way to figure out which of these new super sedans will earn the right to go toe-to-toe with the undisputed champion of its segment, the BMW M3. In reality, it's just a really good excuse to put three of the hottest sedans on the market on video at the same time... and there's certainly nothing wrong with that. Jonny Lieberman spends time in each of the two new challengers on the road, picking apart their powertrains, chassis and driving dynamics on the kinds of twisty roads drivers of these cars will relish. Then, he hands the keys off to Randy Pobst, who sort of acts as an unmasked version of a certain tame racing driver, except that he talks and has a personality. 0-60 and quarter-mile times are equated, braking performance is measured and scores are tallied before the two sport sedans end up at Willow Springs raceway. Interestingly enough, the car that proves (just slightly) faster at the race track isn't the car that wins the comparison. Curious? We're not going to spoil it for you. Check out the video, above. Then, for more action of these two machines, check out the videos just below. Related Video: News Source: Motor Trend Channel via YouTube BMW Cadillac Mercedes-Benz Luxury Performance Videos Sedan motor trend cadillac ats-v mercedes-amg c63

Performance cars old and new are headed to auction at Las Vegas Grand Prix

Auction house RM Sotheby's is hosting a sale ahead of the 2023 Las Vegas Formula One Grand Prix, and most of the lots that will cross the block were designed with performance in mind. Whether you want a supercar or a Formula One car, there's a chance you'll find it in Sin City. One of the highlights from the sale in terms of rarity and price is the Mercedes-AMG Petronas W04 that Lewis Hamilton drove in the 2013 F1 season. Assigned chassis number F1W04-04, it's the team's last car powered by a naturally-aspirated V8 engine, and you're on the wrong track if you're thinking of the 4.0-liter unit that powers AMG's road cars. The engine in question is a 2.4-liter unit that develops 750 horsepower and is capable of revving to a screaming 18,000 rpm. The KERS system injects 80 additional horses into the driveline. Hamilton drove F1W04-04 in 14 of the 2013 season's 19 races, and he won that year's Hungarian Grand Prix in the car. RM Sotheby's notes that F1W04-04 is "the sole example to be sold outside of the Mercedes-Benz organization," which explains why it expects the car will sell for anywhere between $10 million and $15 million excluding the buyer's fee and a 2.5% import duty that applies to American residents. That's a lot of money, but modern Formula One cars rarely come up for sale. Several other cars are expected to sell above the $1 million mark, including a 1999 Mercedes-Benz CLK GTR ($8 million to $9 million), a 1988 Porsche 959 Komfort ($1,650,000 to $1,850,000), and a 1996 Bugatti EB110 Super Sport ($2,500,000 to $3,250,000). The 1990 Ferrari F40 GT (one of 21 units built) could bring up to $4 million. You can take home a rare, high-end classic even if you cap your budget at $1 million. How about a 1984 Lamborghini Countach 5000 S that was delivered new to Ralph Lauren and that has been in the hands of its second owner since 1986? RM expects the coupe will sell for up to $900,000. The auction house is also giving enthusiasts two distinctly different ways to spend a six-digit sum on a 30-something-year-old Mercedes-Benz. There's a 1990 190E 2.5-16 Evolution with about 3,400 original miles that could fetch up to $700,000. That's a lot to pay for a W201, but this isn't a run-of-the-mill Baby Benz: It's one of 502 examples built for homologation purposes. Alternatively, the 1989 560SEC AMG 6.0 Wide-Body could sell for up to $900,000. It's one of the most emblematic cars designed by AMG before it joined Mercedes-Benz.