School bus? Cool bus! Designed for school districts that could afford the very best, the Supercoach pictured was built virtually unchanged from 1949 all the way to 1991. From curbsideclassic.com: "What made Crowns so special? In a word – toughness – these buses were legendary for their strength, robust construction, and longevity. While most of Crown’s competitors used 45,000 psi steel, Crown’s floorpan and framework were constructed of 90,000 psi ultra high tensile steel sheathed with heat-treated aluminum bodywork. The Super Coach’s double-walled steel body structure was both bolted and welded to outriggers on the main chassis which was built using nested channel frame rails and cross-members."
