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Popular Science magazine's Best Of What's New 2012 all ate up with cars

Popular Science has named the winners in its Best of What's New awards, the victors coming in the categories of aerospace, automotive, engineering, entertainment, gadgets, green, hardware, health, home, recreation, security and software. The automotive category did not go wanting for lauded advancements:
Tesla Model S: the Grand Award winner for being "the standard by which all future electric vehicles will be measured."
BMW 328i: it's 2.0-liter turbocharged four-cylinder gets called out for being more powerful and frugal than the six-cylinder it replaces.

How tariffs in China could cause a meltdown in the American South

While BMW is clearly a German company, the crossovers that are exceedingly important to it are actually made in Spartanburg, South Carolina. And more than that, the Spartanburg plant (physically located in the town of Greer) is where the corporate know-how and capability for those vehicles is concentrated. These are the vehicles – specifically, the BMW X3, X4, X5, X6, X7 – that drove record growth for the company in 2018, according to BMW. But whatÂ’s most notable about BMW Group Plant Spartanburg, given current events, is that according to the U.S. Department of Commerce it was the largest automotive exporter by value for the fifth year running in 2018. ThatÂ’s worth emphasizing: largest automotive exporter by value. Not GM. Not Ford. BMW. And where might one assume that more than a few of those X vehicles are shipped to? China. Some 360 miles southwest of Spartanburg is Mercedes-Benz U.S. International, Inc., in in Tuscaloosa County, Alabama. It started building vehicles in 1997. Since then, Daimler AG has invested in excess of $5.5 billion in the facility. It manufactures the crossover now known as the GLE, formerly the ML-Class. It also makes the GLE coupe and GLS. Daimler describes the Tuscaloosa facility as “the traditional home of SUV production” for those vehicles. When it reported its global 2018 sales, Daimler noted that on a global basis SUVs account “for more than a third of all Mercedes-Benz sales.” According to the Chinese finance ministry, on December 15th the Chinese government will impose a 25% tariff on automobiles (and a 5% tariff on auto parts) from the U.S. Certainly this is going to have a direct effect on the sales of vehicles that are manufactured in the U.S. and exported to China. BMW and Mercedes are going to take it on the chin for the vehicles that they make in plants that they invested in so heavily in the U.S. Which could potentially mean that people in places like Greer, South Carolina, and Vance, Alabama, are going to find themselves in the crosshairs of the combatants. Soo too could Lincoln, which produces vehicles in places like Louisville, Kentucky (Navigator), Chicago, Illinois (Aviator) and Flat Rock, Michigan (Continental). Although the Tesla Gigafactory 3 is rapidly nearing completion in Shanghai, it is worth noting that vehicles built in Fremont, California, are being sold in China in numbers that donÂ’t make Musk unhappy.

Aluminum lightweighting does, in fact, save fuel

When the best-selling US truck sheds the equivalent weight of three football fullbacks by shifting to aluminum, folks start paying attention. Oak Ridge National Laboratory took a closer look at whether the reduced fuel consumption from a lighter aluminum body makes up for the fact that producing aluminum is far more energy intensive than steel. And the results of the study are pretty encouraging. In a nutshell, the energy needed to produce a vehicle's raw materials accounts for about 10 percent of a typical vehicle's carbon footprint during its total lifecycle, and that number is up from six percent because of advancements in fuel economy (fuel use is down to about 68 percent of total emissions from about 75 percent). Still, even with that higher material-extraction share, the fuel-efficiency gains from aluminum compared to steel will offset the additional vehicle-extraction energy in just 12,000 miles of driving, according to the study. That means that, from an environmental standpoint, aluminum vehicles are playing with the house's money after just one year on the road. Aluminum-sheet construction got topical real quickly earlier this year when Ford said the 2015 F-150 pickup truck would go to a 93-percent aluminum body construction. In addition to aluminum being less corrosive than steel, that change caused the F-150 to shed 700 pounds from its curb weight. And it looks like the Explorer and Expedition SUVs may go on an aluminum diet next. Take a look at SAE International's synopsis of the Oak Ridge Lab's study below. Life Cycle Energy and Environmental Assessment of Aluminum-Intensive Vehicle Design Advanced lightweight materials are increasingly being incorporated into new vehicle designs by automakers to enhance performance and assist in complying with increasing requirements of corporate average fuel economy standards. To assess the primary energy and carbon dioxide equivalent (CO2e) implications of vehicle designs utilizing these materials, this study examines the potential life cycle impacts of two lightweight material alternative vehicle designs, i.e., steel and aluminum of a typical passenger vehicle operated today in North America. LCA for three common alternative lightweight vehicle designs are evaluated: current production ("Baseline"), an advanced high strength steel and aluminum design ("LWSV"), and an aluminum-intensive design (AIV).