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tjts1 · 03-17-2008, 11:36 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, 11:36 PM	#2 (permalink)
tjts1 Banned Join Date: Feb 2008 Location: california Posts: 1,329 Thanks: 24 Thanked 161 Times in 107 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.