2007 Ford F-550 Super Duty 4x4 Dump Truck Diesel 6-speed Manual Pto 57,600 Miles on 2040-cars

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Hennessey unleashes 2015 HPE700 supercharged Ford Mustang

Thanks to the 2015 Dodge Challenger SRT Hellcat there is a new magic number in the muscle car world - 707. To raise eyebrows these days in the power war, a vehicle needs to match or preferably exceed that palindromic figure. The tuners over at Hennessey took a look at it for their 2015 HPE700 Mustang and decided to go one better. Well, ten actually, because they bestowed their latest creation with 717 horsepower and 632 pound-feet of torque.
The HPE 700 Mustang takes the standard Mustang GT with its 5.0-liter V8 and turns up the power a few hundred notches with a Roots-type supercharger running at 7.25 psi. Hennessey claims that this boosted 'Stang can rocket to 60 miles per hour in about 3.6 seconds and cover the quarter-mile in 11.2 seconds at 131 mph. For those keeping score at home, those figures are very similar to Challenger Hellcat.
To cope with all of the added boost, the engine gets a high-flow throttle body, upgraded injectors, new fuel pump, stainless steel exhaust and Hennessey's calibration for the engine management. Pricing for the package is $59,500, including the base 2015 Mustang GT, but the company is limiting production to 500 units for the 2015 model year. Founder John Hennessey told Autoblog that he has already received about a dozen orders for them.

2019 Chicago Auto Show photo gallery: All of the grilles

Do you like trucks? How about grilles? Like really big, shiny, chromey, in-your-face, could-be-made-by-Broil-King grilles? Well, the Chicago Auto Show is the place to be. Traditionally known as the truck show of the annual auto show circuit (at least those covered by national media), Chicago has what seems like a small national park's worth of acreage devoted to both consumer and commercial trucks. From humble extended cab Ford Rangers to a mammoth F-650 with cherry picker sprouting from its aft quarters, there's bound to be a truck for everything. And they all have grilles. So above is our gallery devoted to them, because hell, why not? Should you want to know about the trucks attached to those grilles, check out our coverage below. Heavy Duty Trucks 2020 Chevrolet Silverado HD revealed, tows 35,500 pounds 2020 GMC Sierra HD revealed, has more subtle looks than Chevy sibling 2019 Ram Heavy Duty trucks get new face, 1,000 pound-feet of torque 2020 Ford F-Series Super Duty revealed, adds massive gas engine Full-Size Trucks Read how all of the full-size trucks compare to each other 2019 Chevrolet Silverado First Drive 2019 Chevrolet Silverado 2.7L Turbo First Drive 2019 GMC Sierra First Drive 2019 GMC Sierra AT4 First Drive 2019 Ram 1500 Laramie Quick Spin Review 2019 Ram 1500 eTorque Drivers' Notes Review 2019 Ford F-150 2.7L EcoBoost Quick Spin Review 2018 Ford F-150 King Ranch Power Stroke Diesel Review Related Video: Featured Gallery 2019 Chicago Auto Show: All of the grilles View 40 Photos Chicago Auto Show Chevrolet Ford GMC RAM Truck chevrolet silverado

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.