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Carmakers ask Trump to revisit fuel efficiency rules

Car companies operating in the US are required to meet stringent fuel efficiency standards (a fleet average of 54.5MPG) through 2025, but they're hoping to loosen things now that President Trump is in town. Leaders from Fiat Chrysler, Ford, GM, Honda, Hyundai, Nissan, Toyota and VW have sent a letter to Trump asking him to rethink the Obama administration's choice to lock in efficiency guidelines for the next several years. The car makers want to revisit the midterm review for the 2025 commitment in hopes of loosening the demands. They claim that the tougher requirements raise costs, don't match public buying habits and will supposedly put "as many a million" jobs up in the air. The Trump administration hasn't specifically responded to the letter, although Environmental Protection Agency nominee Scott Pruitt had said he would return to the Obama-era decision. The automakers' argument doesn't entirely hold up. While the EPA did estimate that the US would fall short of efficiency goals due to a shift toward SUVs and trucks, the job claims are questionable. Why would making more fuel efficient vehicles necessarily cost jobs instead of pushing companies to do better? As it is, even a successful attempt to loosen guidelines may only have a limited effect. All of the brands mentioned here are pushing for greater mainstream adoption of electric vehicles within the next few years -- they may meet the Obama administration's expectations just by shifting more drivers away from gas power. This article by Jon Fingas originally appeared on Engadget, your guide to this connected life. Related Video: News Source: ReutersImage Credit: Daniel Acker/Bloomberg via Getty Images Government/Legal Green Chrysler Fiat GM Honda Hyundai Nissan Toyota Volkswagen Fuel Efficiency CAFE standards Trump

Why China will soon lead the electric vehicle market

China could be the world's largest electric vehicle market by 2020, thanks to significant government subsidies and the major drawbacks of owning an internal combustion model there. The country's populace registered 75,000 EVs in 2014, and sales figures in 2015 looked even better. In a new video, Renault-Nissan examines the trend and why it happened. Chinese cities heavily encourage buyers to go green through vehicle incentives, but they also make it a hassle to be a polluter. In some places, there's a lottery to limit vehicle registrations and alternating driving bans for even or odd license plate numbers. However, these limits don't apply to EVs, and the country's automakers have benefited from the regulations by introducing small, inexpensive electric models, albeit with sometimes hilarious styling. China's emissions regulations will get even tighter in the coming years. In fact, a Honda exec recently predicted the company wouldn't be able to sell any models there without some form of electric assistance by 2025. Get a better look at the country's electric push to clean up vehicle pollution in Renault-Nissan's video. Related Video:

A look inside Infiniti's variable-compression engine

We're sympathetic to anyone who had trouble understanding what's going on with Infiniti's new variable-compression engine. While we got a full tech briefing on the novel VC-Turbo back in August, the visual aids were lacking. The cutaway engine Infiniti brought to the Paris show fixes all of that. You can thank the little green and pink lines on the cutaway for making the whole idea a little more clear. Click through the gallery to see two lines – one green and one pink – that represent the different strokes allowing for different compression ratios. Remember, the compression ratio is the amount of volume in the cylinder on intake compared to the amount at the end of the compression stroke. Leave more room at the end and you lower that ratio. The length of the stroke doesn't change with this system, but where it sits along the cylinder does. Hence those two lines. The variable compression ratio allows this new turbocharged engine to maximize fuel economy when the turbo isn't needed by raising the compression ratio. It will see its first use in the next Infiniti QX50 crossover, previewed by the QX Sport Inspiration concept that's also on display in Paris, and has performance targets of 268 horsepower and 288 pound-feet of torque. After, it will migrate to other Infiniti and Nissan vehicles, with transverse front-drive-based applications first in line. Eventually, it's likely to completely replace Nissan's corporate 3.5-liter V6. We'll be poking around the engine a little more in Paris today to try and get some more info. For now, enjoy those cutaway images and those friendly little lines. Featured Gallery Infiniti VC-Turbo engine cutaway View 14 Photos Paris Motor Show Infiniti Nissan Technology Emerging Technologies engine 2016 paris motor show