I've seen photos of a bus conversion on one of those MAN articulated transit coaches. I think they're 65' long, but I'm not sure. Seattle's Metro Transit retired several of their initial fleet a couple of years ago.
There would be some interesting handling dynamics with the various articulated buses. The MAN series had the engine under the floor of the "tractor" half, with the drive going to the duallies just forward of the hinge. Another transit agency in our area has coaches where the engine and transmission are in the back section, in an installation like a regular transit coach, and drive the aft-most axle.
It would seem weird to me to be sitting 60 feet or more in front of the drive wheels, with a damn great hinge between us. In my transit career, I never drove the articulated rigs.
Frank Damp -Anacortes, WA,(DW- Eileen)
ex-pat Brits (1968) and now ex-RVers, as of 08 Dec 14.