I don't normally draft 'dirty trucks' or anything else, but...
Yesterday, I got behind a Prevost H-Series with a rubber skirt all the way to the pavement.
Dude, that rawked!
It was like running behind a 350-pound offensive lineman - nobody got in 'our' way!!!
We split traffic like Moses parting the Red Sea... 65 MPH in a construction zone!
EDIT2
Gotta love the web (first edit I said "looked like this but it had a Black Diamond logo")...
How can you NOT draft this bad boy???
I was having lurid pornographic fantasies about driving it, instead of my Honda CiViC!
My ride was about the same height as his fender wells...