Well Mack being a Bus manufacturer had an idea for a new design highway bus Yet the world wondered what was all the fuss The MV-620-D was a new prototype bus It all engineering that would be a plus So Mack MV-620-D was given to Greyhound to test It was going to be an observation better or for less So Greyhound put the bus into regular schedule service Reaction from the traveling public was certainly obvious Greyhound tested the bus in 1957 being the year of my birth The Mack bus traveled on the West Coast So there was reason for everyone to boost There was admiration by most Greyhound put the Mack MV-620-D through the highway paces However thought the bus was in a race But throughout the test, optimistic with plenty of uncertainty It was drive into the ride Research in what would arrive Yet test after test, Greyhound concluded that the MACK MV-620-D wouldn’t fit in with it’s fleet But imagine, Greyhound would have a bus and they could compete But it turned into defeat Yet now it becomes a retreat But Greyhound chose not to have the MV-620-D as a prize But what Greyhound didn’t realize A new design for the Greyhound enterprise The MV-620-D could have truly been a success because of the engineering structure from front to back But Greyhound felt the bus had a lack The front looking like a highway bus, but the back having a auto look being the track Yet Greyhound had the global name and could have encouraged other bus companies to purchase the MV-620-D to their fleet Now this would have been neat However, Greyhound being the beast The MV-620-D was a release Your writer has seen the MV-620-D up close and personal A friend of mine actually owned it, but sold it overseas What’s in a bus name? Mack history in what will remain The MV-620-D had potential But Greyhound would have had the first original.