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Join Autoblog editors for a full video tour of the 2019 Detroit Auto Show

The 2019 North American International Auto Show might have been a little more quiet than past years, but there were still some pretty major reveals, including the Toyota Supra, new Ford Explorer, Shelby GT500, Subaru WRX STI S209 and Kia Telluride. We also saw some lovely concepts like the Nissan IMs and Lexus LC Convertible. Senior Editor Alex Kierstein, Consumer Editor Jeremy Korzeniewski and Senior Green Editor John Beltz Snyder join me, Associate Editor Reese Counts — with Social Media Manager Michael Dylan Ferrara behind the camera — on a long walk through the show. We discuss cars, poke around the stands, dress a bloody wound and answer your questions in the Facebook comments. For more Detroit coverage, you can check out Autoblog's picks for the best in show, listen to our podcast or look at the best images from all the reveals. Finally, don't forget to watch Editor-in-Chief Greg Migliore hand over our 2019 Technology of the Year award. Related Video: Green Detroit Auto Show Acura Cadillac Chevrolet Ford GM Hyundai Infiniti Kia Lexus Nissan RAM Subaru Toyota Volkswagen Truck Convertible Coupe Crossover Hatchback Minivan/Van SUV Videos Sedan facebook 2019 detroit auto show live

DC fast charging not as damaging to EV batteries as expected

As convenient as DC fast charging is, there have been lots of warnings that repeated dumping of so many electrons into an electric vehicle's battery pack in such a short time would reduce the battery's life. While everyone agrees that DC fast charging does have some effect on battery life, it may not be as bad as previously expected. Over on SimanaitisSays, Dennis Simanaitis, writes about a recent presentation by Matt Shirk of the Idaho National Laboratory (INL) called DC Fast, Wireless, And Conductive Charging Evaluation Projects (PDF) that describes an ongoing test of four 2012 Nissan Leaf EVs that are being charged in two pairs of two. One pair only recharges from 50-kW DC fast chargers, which the other two sip from 3.3-kW Level 2 chargers exclusively. Otherwise, the cars are operated pretty much the same: climate is automatically set to 72 degrees, are driven on public roads around Phoenix, AZ and have the same set of dedicated drivers is rotated through the four cars. "Degradation depends more on the miles traveled than on the nature of recharging." What's most interesting are the charts on page seven of Shirk's presentation (click the image above to enlarge), which show the energy capacity of each of the four vehicles. When they were new, the four batteries were each tested to measure their energy capacity and given a 0 capacity loss baseline. They were then tested at 10,000, 20,000, 30,000 and 40,000 miles, and at each point, the DC-only EVs had roughly the same amount of battery loss as the Level 2 test subjects. The DC cars did lose a bit more at each test, but only around a 25-percent overall loss after 40k, compared to 23 percent for the Level 2 cars. Simanaitis' takeaway is that, "INL data suggest that the amount of degradation depends more on the miles traveled than on the nature of recharging." The tests are part of the INLs' Advanced Vehicle Testing Activity work and a final report is forthcoming. These initial numbers from IPL do mesh with other research into DC fast charging, though. Mitsubishi said daily fast charging wouldn't really hurt the battery in the i-MiEV and MIT tests of a Fisker Karma battery showed just 10-percent loss over 1,500 rapid charge-discharge cycles.

Recharge Wrap-up: Tesla Model X 0-100 video, Nissan-Renault record EV sales

A video shows that a Tesla Model X can accelerate from 0-100 mph faster than a Model S P85D. DragTimes tested a Founders Edition Tesla Model X P90D with Ludicrous Mode, and found that it did 0-60 mph in 3.178 seconds, which is faster than Tesla's stated 3.2 seconds. The 0-100 mph happened in just 7.98 seconds, which is faster than the 8.3 seconds DragTimes clocked in Model S P85D using Insane Mode. Even more impressive is that the Model X used is a seven-seater with all the boxes ticked, which means that it's lugging a lot of extra weight on the drag strip. DragTimes says it intends to do more tests with other configurations of Tesla models – perhaps we'll get to see how two vehicles with Ludicrous Mode compare. See the video above, and read more at Teslarati. Nissan and Renault saw record sales of electric vehicles in 2015. The two automakers sold 84,754 battery-powered vehicles last year, a rise of 2.5 percent. Nissan Leaf and e-NV200 sales dropped by almost 10 percent, but Leaf sales are expected to improve with the next generation. The Alliance's EV sales, though, were boosted by Renault selling 45 percent more EVs in 2015. Government incentives in France are partially responsible for Renault's success. Since they began selling them, Renault and Nissan have sold 302,000 EVs worldwide by the end of 2015. Read more at Bloomberg Business. A study finds that E20 provides higher peak load capability and thermal efficiency than gasoline in reactivity-controlled compression ignition (RCCI) combustion. The dual-fuel combustion technique uses in-cylinder blending to optimize combustion. The study used E20 ethanol blend or gasoline blended with highway diesel or B20 biodiesel blend and compared the results. In addition to the load capacity and thermal efficiency benefits, E20 also produced fewer hydrocarbon emissions. Read more at Green Car Congress. Related Gallery Renault-Nissan Alliance at COP21 View 22 Photos News Source: Teslarati, YouTube: DragTimes, Bloomberg, Green Car Congress Green Nissan Tesla Renault Alternative Fuels Ethanol Green Automakers Electric Videos recharge wrapup