The link no longer seems to work, and googling only gave me one result, which is a review from 2006 (scroll to the green-backed section of text about 3/4 of the way down the page).
To summarize the review, Doug Thron, a photographer/real estate agent, made an hour-long low-budget film called 'The Making of an Awesome General Lee', which showed a standard '69 Charger being transformed into a General Lee replica. Thron hired local actress (and zombie extra) Theresa Ireland to host the video, but then employed Californian bikini model Cindy Pucci for extra scenes including washing the newly created General Lee.
'Waxing the General Lee' was a re-edited version of the video with the car transformation part condensed and the car wash scenes with the model in the skimpy bikini expanded.
Between selling around 2,000 DVDs at $10-$20 each and selling the General Lee replica, Thron apparently made quite a good return on his investment.