Here's the link to my 300zx tuft test video.
Note: All my videos are humerus, please do not be offended at my choice of cheesy 80's music, and not-so-politically-correct, counter-productive acceleration
Aerodynamic Tuft Testing | Dot Vids .NET
First Tests:
-Deleted mirrors, and Custom Front Air Dam
-Tufts show ugly v shaped turbulence due to the external 3rd brake light
Second Test:
-Relocated 3rd brake light to interior behind glass, Shaved Antenna, and Removed rear windshield wiper
-Tufts show much smoother attached flow
Note: Some of the tufts on the driver side are a little blown to the side, I think, because of the oncoming traffic on the other side of the highway
At the end it shows the effects of the rear glass tufts behind a Semi's Wake at 70 mph (really cool)