New York City Transit GMC Fishbowl Buses New York City Transit operated many iconic "Fishbowl" buses, manufactured by General Motors, from the 1970s until the mid-1990s. GMC Fishbowl 100 at the Transit Museum, September 13, 2003 GMC Fishbowl 5227 at the Transit Museum, September 13, 2003 GMC Fishbowl interior