The Bee Line System is a bus system that serves Westchester County, New York. Despite serving only Westchester County, it also serves parts of the NYC Borough, The Bronx, as Westchester County borders that area. These liveries are based on the New Flyer Xcelsiors that are operated by the Bee Line system, but without the rear window.
New Flyer Xcelsior models: https://www.gta5-mods.com/vehicles/brampton-transit-bus-pack-part-1 (an alternate version exists, but that one has a different bike rack at the front.: https://www.gta5-mods.com/vehicles/addon-replace-brampton-transit-based-new-flyer-xcelsior-pack)