2013 Ford Mustang Premium Convertible Auto Leather 17k Texas Direct Auto 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.

These horribly misguided front-drive design studies nearly became the Mustang

As we eagerly await the unveiling of the all-new sixth-generation Mustang, Ford has been giving us some great information over the past few months showing what has gone into shaping its venerable pony car. As many changes as the Mustang has gone through in its 50 years, though, it appears the fourth-gen model played a decisive and pivotal role in the car's future.
As is part of Mustang lore, the front-wheel drive Ford Probe was originally developed as a next-generation Mustang in the Eighties before cooler heads prevailed. The Blue Oval has just released a handful of images showing how bad things could have been - including a full-scale clay model of a front-wheel-drive Mustang (shown above). Fortunately, the FWD Mustang plan was scrapped and Ford went to work designing a rear-wheel-drive replacement for the Fox Body Mustang, with three design studies making it far enough to become full-scale models. These include the soft "Bruce Jenner" Mustang, the over-the-top "Rambo" Mustang and the middle-ground "Arnold Schwarzenegger" Mustang, which finally became the basis for the 1994 'Stang.
By early 1991, the design language of the fourth-generation Mustang had been worked out, and the rest, they say, is history. Scroll down for the fascinating press release telling the story of the fourth-gen Mustang, and be sure to check out the gallery of horribly misguided sketches and various design studies that were all on the table in the late 1980s.

Ford F-100 'Snakebit' shown off by Gene Simmons and Shannon Tweed at SEMA

Ford, along with KISS bassist Gene Simmons and his wife, Shannon Tweed, used SEMA as a backdrop to pull the covers off Snakebit, a 1956 Ford F-100 pickup truck that's been updated with Shelby Mustang-derived styling bits and a 5.4-liter supercharged V8 engine. All 550 horsepower are funneled through a six-speed manual gearbox to the rear wheels.
Underneath the custom bodywork sits a chassis that's been stretched five inches and a bed widened and bedecked with billet machined pieces that are supposed to look like wood. The 20-inch rear and 18-inch front wheels ape those of past Shelby Mustang models. The interior is swathed in two-tone leather with a bench seat designed to look - try to act surprised - like a Shelby Mustang.
Like what you see? Bidding for the truck will take place in 2014 at an unspecified Barrett-Jackson event (we'd assume Scottsdale). Proceeds will be used to help build a children's hospital in Saskatoon, in the province of Saskatchewan, where Ms. Tweed grew up. See the high-res gallery above and the press release down below for more.