A new Frankfurt bus found under Decor / MiscDecor, costs 0. You need Ambitions or a later pack for the bus to show in the game. Use cheat moveobjects on to place the bus. This is a left hand drive bus.
*** NB. This bus is not compatible with game mod
as it removes any decor vehicle automatically. ***
Frankfurt bus (MediaFire)
Lady Gaga Tour bus
London bus route 22
London bus double decker route 74 ver 2