Most Fuel Efficient Roof Box

A close second was the kayak with 28 percent or a.

Most fuel efficient roof box.

The quick grip mounting system is both tool free and very easy to use and with a bit of practice you can get the box on and off the car in about 5 minutes. Promoted as the quietest most aerodynamic and fuel efficient line of roof racks in the world yakima s wispbar takes direct aim at conservation minded drivers. But if you. A former rolls royce aircraft engineer was hired to take yakima s racks to the next level and we have him to thank for the wispbar s wind cheating aerofoil wing profile.

For comparison the additional fuel consumption caused by roof racks is about six times larger than anticipated fuel savings from fuel cell vehicles and 40 percent of anticipated fuel savings. The claw attachments make it easier and quicker to mount and remove the box. Keep in mind that your car uses more fuel when it has a roof box attached our test car used 12 1 more fuel with the roof box fitted than without. The box has tapers to a point and employs diamond textured aero skin to help it slice through the air and protect vehicle fuel economy.

Bengt halvorson april 15 2015 comment now.