Vehicle Identification

Hi everyone,

I was just wondering if anyone could help me identify what type of vehicle is pictured in the photo below? I'm currently involved in a guessing competition and this is one of the questions so I thought I'd come on here and see if anyone had any ideas for me?

http://i36.tinypic.com/23mvlvp.jpg

I'm guessing either a travel coach or motor home, however I really have no idea. Any help would be great.

My guess would be a bus or coach made by the GM Coach division of General Motors.