should i raise the trunk lid, 'kamm the back, or both?

[IsaacCarlson]

Here is a pic. The red diagonal line is 12 degrees, the yellow over rear wheel is current wheel skirt, Yellow at front is what i would like for airdam...any suggestions?, you can see for yourself the proposed kamm and raised trunk. which of the three positions should be used for the kamm? if this design can be improved or you have ideas please let me know.

[Piwoslaw]

Have you checked out Groar's Uglyback? It's a roof extension short enough to not interfere with normal trunk operation. I say: "Try a full extension that hinges up."

[wyatt]

Piwoslaw: Thanks for the link to the Uglyback. I am considering doing something similar (actually exactly the same) to my car, but it won't stand out so much since I bought white duct tape and have white coroplast for the job AND my car is white!