2003 Ford Mustang Svt Cobra 502 Rwhp 544 Rwtq 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.

Radical RXC is a Mustang-hearted racecar for the road

Radical has been building fantastic open-cockpit racers and roadcars for years, for the track day enthusiast who wants a vehicle that looks like it could show up for a start at the 24 Hours of Le Mans. The company's latest creation is the RXC, and while this coupe looks like a prototype racer, it's road legal in the UK and in some parts of the US. When testing a car this, um, radical, the first thought is likely to get it to the track for some big slides and wide open acceleration, but XCar Films takes the opposite approach in its latest video to learn how this racer fares on public roads. The version tested here is the standard RXC with the 3.7-liter V6 out of the Ford Mustang tuned to 350 horsepower with a seven-speed sequential gearbox; but Radical also offers the same engine with 380-hp, a 454-hp Ford EcoBoost 3.5-liter twin-turbo V6, or even a 500-hp V8. Even in the most basic guise, it's a handful to control in the wet, if this video is any indication. The cliche of a road-legal racecar is bandied around a lot in the motoring world, but it truly applies to the RXC. The only problem with seeing the RXC exclusively on the road is that it can never really open up and show its full potential. This racer is indeed chomping at the bit to rocket off into the horizon, but all those pesky road safety laws hold it back. Still, the video is a chance to get a better impression about this thoroughbred sports car. Scroll down to check it out. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Amelia Island 2013: 50 years of the Ferrari-slaying Ford GT40

Originally developed with the sole purpose of being a Ferrari rival to compete at the 24 Hours of Le Mans, the Ford GT40 became a prominent racing machine in the 1960s in both Europe and the US. Not wanting to leave such an important car out of the fun, the 2013 Amelia Island Concours d'Elegance also took time out from its other celebrations to recognize the 50-year anniversary of the GT40.
Over its short lifespan, the GT40 was offered in a handful of configurations, but the classic short-tailed (Mk I and Mk II) bodystyles were well represented... especially in Gulf livery. James Glickenhaus (of Ferrari P4/5 fame) had his bright yellow Mk IV in the field, and there were several others in this bodystyle, including one that has seen plenty of time on the track judging by its chipped-up nose.
As a fitting statement for the car's lengthy racing history, GT40 Chassis Number 1075 won this year's Concours de Sport award. This car took home the checkered flag at Le Mans in 1968 and 1969, and racked up a total of six wins in just 11 races.