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How Ford hid the 2015 Mustang from spy photographers

Now that we've finally seen the 2015 Ford Mustang, it's fun to go back and look at the spy shots we spent months pouring over, trying to dissect what was under all the camouflage. For the most part, Ford did a good job of concealing the car from spy photographers, and it released a video showing how much work went into doing so.
As crude as the Mustang's camo looked, all of the hard plastic, foam, vinyl and ratchet straps were actually created and put in place by a specific design team. The whole idea was to hide the car's identity, but it certainly ended up acting as a magnet for attention, too. According to Ford's press release, it took less than an hour for spy shots to appear online after the car was taken on public roads for the very first time - this is likely in reference to our first official spy shots of the Mustang from June, shown in the gallery below.
Scroll down for a press release and video, which shows footage of the 2015 Ford Mustang testing with minimal camouflage. This is probably the same track session where we got our first look at the Mustang's face back in August.

Spy shooter claims proof of upcoming aluminum Ford F-Series Super Duty

Ford has already confirmed that the 2015 F-150 (pictured above) was just the beginning for its more extensive use of aluminum. CEO Alan Mulally said it himself during the 2014 Detroit Auto Show. We've even already seen the future Raptor testing with an aluminum body. But a recent discovery from an intrepid spy photographer might indicate that the lightweight metal is coming to the Blue Oval's Super Duty pickups in their upcoming generation, as well.
According to Automotive News, a spy shooter in Colorado spotted a prototype for the next-gen F-350 testing. He happened to have a magnet on hand and got close enough to check the truck out. When he held it up to the metal in the bed, it didn't stick, which signaled to him a switch from steel to aluminum.
Obviously, this claim raises some questions. Given that it was a test vehicle, one possibility is that the Blue Oval is just evaluating the feasibility of switching to aluminum for the Super Duty trucks, not necessarily committed to it yet. Ford has been testing it quite exhaustively, after all. In fact, much of the rest of the truck in question was covered in camouflage, so it's possible that the magnet failed to work along the rest of the body not because it was aluminum, but because it wasn't powerful enough to get through the disguising material. Thus, the lightweight metal's use could be far less substantial than on the new F-150. Still, it was a clever idea for the cameraman to check things out and might have given us the first hint about brand's next heavy-duty models.

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.