seen while driving from Las Vegas to Barstow
Certified to deliver 6.6% fuel efficiency gains at 65 mph based on SAE Type II testing validated by the U.S. EPA, sufficient for standalone compliance with 2010 CARB regulations for trailer aerodynamics, and exempt from U.S. DOT length restrictions. http://www.atdynamics.com/trailertail.htm
Created and posted on http://justacarguy.blogspot.com/ ... accept no substitutes from adnascentia!
I saw this on the road recently. Figured it was something for aerodynamics.
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