2006 Ford F-450 Crew Cab Xl Flatbed Diesel 4x4 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.

2015 Ford Mustang stars in bizarrely awesome '80s aerobics video

For reasons we can't comprehend, here's a music video starring the all-new, 2015 Ford Mustang and a number of dancers dressed and styled in the most stereotypically 1980s way possible. The dancers then take part in a male-versus-female dance off. Again, we've no idea why it exists.
It's weird, and for the second time in two weeks, we're sat at our computer wondering, "What are we watching?" That said, it does show the new Mustang from a number of angles, and it's one of the first car-related YouTube videos we've seen that's available in a 4K, ultra-high-def stream.
Take a look below, and let us know what you think in Comments.

2014 Ford Cobra Jet announced with new colors, parachute mount

Ford's drag-strip-ready Mustang Cobra Jet is back for 2014, and it's sporting a few changes to make it even better - both in competition and while sitting still. Rolling off the assembly line ready for duty in the NHRA Stock or Super Stock classes, production of the 2014 Cobra Jet is limited to just 50 units.
Racing upgrades for 2014 include the addition of a new three-speed transmission and a parachute mount, and while these will make the car better in the quarter mile, the Cobra Jet's new colors will make it look better tearing down the track. Buyers can now get their racecars painted up in Gotta Have-It Green or a custom, Cobra Jet-exclusive matte black hue. Ford and Ford Racing have already teamed up to make this an incredible factory drag racer with a full rollcage, massive Hoosier slicks, a race-tuned suspension setup and a supercharged 5.0-liter V8. Now, if only wheelie bars came standard...
Unlike the confusing third-party ordering system announced for the COPO Camaro, all you need to snatch up a 2014 Cobra Jet is $97,990 and good timing (as the cars will be sold on a first-come, first-served basis). Ordering opens up next month with production commencing in July. Check out the press release below.