Going through the magazines, I found several references for the Air Force web site. Here is the link. Navigation around the site is clumsy. Look for "games and extras" and click through to find the videos on building the cars. Three chapters to the build. Challenger gets way more time than Mustang. Breaks my heart to see that Challenger disassembled and cut with a Saws-all.

http://www.airforce.com/supercar/