1963 Ford Fairlane 500 Hardtop Coupe 260 V8-- California Car W/ Black Plate 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.

eBay Find Of The Day: 1988 Saleen Ford Mustang General Tire 21R race car

Saleen may be making headlines these days for working on the Tesla Model S, but its history and bread-and-butter is all about the Ford Mustang. The rear-wheel-drive Dearborn pony cars singlehandedly put the company on the map in the '80s. Founder Steve Saleen was already a talented American racing driver when he started the venture, and like many auto industry businesses before him, Saleen went to the track to prove his vehicles' worth. Now, there's a chance to buy one of those early racers on eBay Motors.
Saleen Mustangs raced in the Sports Car Club of America Escort Endurance Championship - a series of multi-hour races meant to challenge man and machine. Ostensibly a showroom stock class, the cars had larger wheels, tuned suspensions and other upgrades that stretched the concept slightly. Saleen found major success though, taking the championship for its class in 1987 and winning the 24 Hours of Mosport consecutively from 1986 through 1988.
According to the seller, Saleen only built eight of these cars, and this one carries the #21R serial number. They all started life as new Mustangs from Ford dealers but were immediately stripped and prepped to go racing. Beyond obvious mods like a roll cage, they featured eight-inch wide wheels in front, an inch of additional track width, stiffer suspension bushings and much more.

Ford Focus RS ready to make our hot hatch dreams real

Ford's current hot hatch siblings the Fiesta ST and Focus ST are already two pretty great entries into the segment, but there's always a desire for a little more. Thankfully, it looks like the Blue Oval is ready to satiate that need because it's continuing to test the even more powerful Focus RS around Europe. According to our spy shooters, these shots come from near the Nürburgring.
As with previous photos, Ford engineers continue to heavily camouflage the front end of the RS prototypes, but there's a big difference here. Unlike earlier ones, this example appears to have a closer-to-production-ready front bumper rather than just a horizontal strip for the license plate. That may point to development getting somewhat closer to wrapping up. Although, this one lacks the larger rear wing from prior testers, and the exhaust also appears to be a work in progress with the rear diffuser covered in mesh in these latest shots.
The RS is rumored to be using the 2.3-liter turbocharged four-cylinder from the 2015 Mustang, but power is reportedly turned up from 310 horsepower in the 'Stang to somewhere between 325 hp and 350 hp for the Focus. Routing all that just through the front wheels could be a recipe for serious torque steer, and all-wheel drive is potentially being used for better traction.