2001 Newer Shape Ford Explorer Sport on 2040-cars

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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.

Ford cleans up painting process with cameras

Knowing how the bacon gets made rarely entices us and, in the same vein, the same usually goes for knowing about how new cars get painted. But in both instances, however, quality - or a lack thereof - is instantly obvious. In terms of the latter, Ford is showing off its new paint quality process with 3D Dirt Detection Technology to find imperfections in vehicle paint more easily and more quickly.
This process - being performed on the F-150 SVT Raptor above - uses 16 computer-controlled cameras to create a three-dimensional model (inset) of the vehicle to detect flaws in the paint including dirt particles, which can then be buffed out manually. Ford says this new technology cuts down on time spent looking for paint flaws and gives workers more time to correct those that are discovered.
Currently, Ford only uses its 3D Dirt Detection Technology system at three factories (the Dearborn, MI facility, along with those in Louisville, Kentucky and Valencia, Spain), but it will soon spread to five more plants in North America. Ford has released a video and press release for this innovative and unexpectedly interesting process, both of which are posted below.