Buses started out as stretched-out automobiles
The Yelloway Bus system was popular out west
Greyhound Lines was taking over the market and acquiring smaller bus markets and offering low fares
Greyhound struck a deal with GM, so only they could buy these buses
In 1939 the Silverside buses became popular
Some bus lines made deals with the Railroad companies, thereby giving them an advantage on popular routes
In 1936 National Trailways Bus System became incorporated to compete with Greyhound
Trailways was a group of smaller bus companies, such as Santa Fe Trailways
Then the GM-4104 air-ride bus came out and people loved that bus
Trailways eventually acquired some GM-4104 buses via acquisitions of bus companies
The Greyhound Scenicruiser PD-4501 was born and changed everything in the bus industry
Then Brill built a 35’ deck and a half bus but then closed their doors after building a prototype
Then CD Beck & Company created 40’ long deck and a half bus
Then Flxible came out with a 35’ deck and a half bus and was a better design, but lacked luggage bays
In 1956, for $46,000, the first Eagle with a Mann diesel engine was sent to the US with a 6-speed ZF transmission and bi-fold doors
The rear was all glass and acted like a sauna on hot summer days
There was a lavatory and a mini-galley across the aisle
5-star service with a hostess on board on the Golden Eagle was introduced
In 1958 they redesigned the bus again
In 1957 60’ articulated buses came out but could only operate in a couple of states due to their length
https://youtu.be/ppWrIha_GEk