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tjts1 · 03-17-2008, 10:36 PM

Toyota has been putting these on its hatchbacks, SUVs and minivans for years. It doesn't have to be active. It just has to work in the wind tunnel. The gap splits the air cascading off the roof onto the back of the vehicle in order to spread out the pressure gradient and reduce turbulence.

And people thought they were just for looks.

03-17-2008, 10:36 PM	#2 (permalink)
tjts1 Master EcoModder Join Date: Feb 2008 Location: california Posts: 1,145 Thanks: 9 Thanked 98 Times in 78 Posts	Toyota has been putting these on its hatchbacks, SUVs and minivans for years. It doesn't have to be active. It just has to work in the wind tunnel. The gap splits the air cascading off the roof onto the back of the vehicle in order to spread out the pressure gradient and reduce turbulence. And people thought they were just for looks.