Large coaches are used in used in North America for tour operators for short and long distant destinations.
These buses are larger than regular transit buses with 2 to 3 axles (4 to 6 wheels). These buses are used by tour operators, intecity bus lines and charters.
The history of tour buses in North America began in the early 20th Century when trucks were converted to provide a means for sightseeing within large American cities.Gray Line, the largest sightseeing operators began operations in 1910. Sightseeing was likely a side buses for many intercity bus operators as the same types of buses were used (and remains so today). World War II as the industry decline, but it slowly re-emerged as an alternative to driving.