What we are thinking of. It's built on a Freightliner chassis and is powered by an 8.9L Cummins Turbo Diesel. I've yet to actually drive one. There is a place on I-70 near Ohio that sells them. There are mirrors, cameras, and navigation. Don't think I'll have anyone crawling up my ass in
this...
(Told my wife I was planning to remove the graphics and airbrush "Slayer" on the side of it. 
At first she didn't get it--of course she's not into that kind of music... 
)