[christofoo]

I'm surprised by how much time it takes to tuft test a design and remedies, not to mention how long it takes to process and upload the vids... about 6 hours for this, and the most immediate lesson is I need to find a smoother road and add some weight to my micro camera.

Cruising speed is 30-35 MPH.

Here's the flow over the stock Civic (not exactly stock, hitch reciever, passenger mirror delete, partiall grille block, and moon disks)

http://www.youtube.com/watch?v=qFKct3TIDzg

Now with the Aero Hitch Box:

http://www.youtube.com/watch?v=fvCEjG04i_k

Now for some attempts at cardboard remedies:

First a partial Kammback,

and a garnish to force detachment on the side. I shot it this way to emphasise the mismatch in curvature, which I don't think has shown up in my other pics.

http://www.youtube.com/watch?v=ZtcRu7cV3vk

Next a wheel skirt,

and a baffle at the bumper to stop vertical air flow.

http://www.youtube.com/watch?v=MJwGUnPOhYg