2014 Ford Fusion Se 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.

Weekly Recap: Hackers demonstrate auto industry's vulnerability

There's always been a certain risk associated with driving, and this week cyber security came into focus as the latest danger zone when researchers demonstrated how easily they could hack into a 2014 Jeep Cherokee from across the country. The incident raised concerns over the vulnerability of today's cars, many of which double as smartphones and hot spots. During the now-infamous experiment, Chris Valasek and Charlie Miller infiltrated the Jeep's cellular connection and were able to control the infotainment system, brakes, and other functions. The hackers told the Jeep's maker, FCA US, of their findings last year, the company devised a software fix. Though Valesek and Miller hacked a Cherokee (like the one shown above), several FCA products, including recent versions of the Ram, Grand Cherokee, Dodge Durango, and Viper were also affected, illustrating potentially wide exposure that could reverberate across the sector. "For the auto industry, this is a very important event and shows that cyber-security protection is needed even sooner than previously planned," Egil Juliussen, senior analyst and research director for IHS Automotive, wrote in a research note. "Five years ago, the auto industry did not consider cyber security as a near-term problem. This view has changed." Hours after the Cherokee hacking incident was publicized on Tuesday, Sens. Ed Markey (D-Mass) and Richard Blumenthal (D-Conn) introduced legislation to direct the National Highway Traffic Safety Administration and Federal Trade Commission to establish national standards for automotive cyber security. The bill also would require vehicles to have a cyber-rating system to alert consumers how well their cars' privacy and security are defended. "Drivers shouldn't have to choose between being connected and being protected," Markey said in a statement. "We need clear rules of the road that protect cars from hackers and American families from data trackers." Though FCA and its Jeep Cherokee were in the spotlight this time, they were just the latest to showcase how automotive technology has advanced faster than safety and regulatory measures. IHS forecasts 82.5 million cars will be connected to the internet by 2022, which is more than three times today's level. "Cyber-security will become a major challenge for the auto industry and solutions are long overdue," Juliussen said.

Ford recalls over 680,000 Ford Fusions, Mondeos, and Lincoln MKZs for seat belt pretensioners

Update: We spoke with a Ford representative who said that owners will be notified by mail during the week of January 16 . Dealers will also have the fix available at the same time. Owners can bring in their vehicles to dealers for an evaluation in the mean time. The main text has been updated to reflect this. The Basics: Ford is recalling 680,872 2013-2016 Ford Fusions, 2015-2016 Ford Mondeos, and 2013-2015 Lincoln MKZ s for an issue with front driver-side and passenger-side seat belt pretensioners. The Problem: The seat-belt pretensioners did not have sufficient insulation applied. When the pretensioners are activated, the heat generated can cause the cables connected to the belts to separate, which in turn can prevent the seat belts from effectively restraining the occupant. This can lead to injuries. Injuries/Deaths: Ford reports two accidents and two injuries have occurred that are related to this recall. The fix: A dealer technician will inject an insulation coating around the pretensioner. This should effectively keep the heat away from the cables, ensuring the seat belt will properly restrain the user in a collision. If you own one: Affected owners will be notified by mail on the week of January 16. Dealers will have the fix available that week, and owners will be able to bring in their vehicles for the fix to be implemented free of charge. Related Video: