I stumbled upon an paper by Prathmesh Sudhakar, Vasyl Grabovyy, and Prasanna kulkarni dated in May of 2009.
I believe it has some information of interest to us Pickup Truck drivers interested in Aero modifications of our trucks...
http://www.ecs.syr.edu/Faculty/elhad...%20truck_2.pdf
I apologize if this is a re-post, I didn't find it on a search...