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Which is more fuel efficient, driving with a pickup's tailgate up or down?

Thanks to the smoke wand in the wind tunnel, you can actually see the difference in our video.
Should you drive with your pickup truck's tailgate up or down? It's an age-old controversy that's divided drivers for decades. Traditionalists will swear you should leave the tailgate down. Makes sense, right? It would seem to let the air flow more cleanly over the body and through the bed. But there's also a school of thought that argues trucks are designed to look and operate in a specific manner, and modern design techniques can help channel the airflow properly. So don't mess with all of that: Leave the tailgate up.

VW going turbo-only in 3 to 4 years

This really was a matter of when, rather than if. Volkswagen will apparently be the first manufacturer to phase out naturally aspirated engines in favor of turbocharging its full slate. VW is kind of responsible for ushering in this push towards small-displacement, turbocharged engines that's taken the industry by storm. When it dropped its direct-injection, 2.0-liter turbo in the 2005 GTI it demonstrated that strapping an iron long to an engine can enhance the powertrain as a whole. VW made fuel economy gains, while also giving a linear, non-laggy turbo experience that it has replicated, model-after-model, to this day.
Speaking with The Detroit News, Volkswagen's executive Vice President of Group Quality, Marc Trahan, told the paper that, "We only have one normally aspirated gas engine, and when we go to the next generation vehicle that it's in, it will be replaced. So three, four years maximum."
Really, it's hard to get teary-eyed about either of these engines going away. VW has access to smaller powerplants that could easily match the performance of the 2.5 five-cylinder and the 3.6 V6, while gobbling up less fuel and providing a better driving experience. What we are sad about is that a similar statement about the extinction of NA engines came from the Vice President of Powertrain Engineering at Ford, Joe Bakaj. We'd certainly get teary-eyed over a world without Ford's excellent 5.0-liter V8.

Obama to herald auto industry turnaround from idled Ford plant

President Barack Obama will tout the recent successes of the American auto industry in a speech on Wednesday. This would be a fine and dandy plan aside from two small hitches. First, the president is visiting Ford's Wayne, MI factory, which is rather strange considering the government bailed out the company's local rivals, Chrysler and General Motors. Even more worrying, considering the topic of the speech, is that the Wayne facility has been idled due to a lack of demand. According to The Detroit News, the White House said the speech will focus on "the workers in the resurgent American automotive and manufacturing sector now that the auto rescue has been completed and the decision to save the auto industry and the over one million jobs that went with it." Wayne Assembly employs some 5,100 Michiganders when its lines are up and running, but as gas prices have plunged below $2 per gallon in some areas over the past month, its fuel-efficient products – the Focus and C-Max – have seen their sales plummet, as well. In December, the Focus' year-over-year sales were down 4.4 percent, while the C-Max dipped 3.3 percent, Ford told The News. Lagging sales for the two compacts aren't a new thing, though. Focus sales in all of 2014 were down 6.4 percent, while the C-Max struggled with a 21.6-percent drop last year. According to The News, Ford made the decision to idle the factory before being approached by the White House. Considering that, we wonder what the team at 1600 Pennsylvania Avenue was thinking when it selected the Ford facility, and what impact the location will have on the president's message. News Source: The Detroit NewsImage Credit: Mira Oberman / AFP / Getty Images Celebrities Government/Legal Plants/Manufacturing Ford