Having part in the tour bus and limo world as well as trucking... Sprinters are becoming widely used for "Executive Transportation" as some are calling it. They raise the roofs, put a bunch of leather in the back and basically make them fancy little limo's that can in some cases be able to be stood up inside of. The stretched sprinters are usually not this long however. Sprinters are usually not as long as a stretched limo and therefore a little easier to maneuver, especially with the cab forward design and front axle placement. I've heard mixed reviews on their comfort levels though. Interesting photo none the less. Sure would make for an interesting expediter, even if it was 5 or 10 feet shorter.
BigBusBob