Um, San Andreas is a real city in California, feel free to google it, but I used to live there. San Andreas is also a fake state based on California in the World of Grand Theft Auto. Liberty City and Vice City are fake cities in Grand Theft Auto, but they are also based on real cities.
GTA: London makes no sense at all. Why would they create the whole GTA universe with Liberty City, Vice City, San Fierro, Las Venturas, and Los Santos and then just throw in a real city? It may be based on London, but it won't be called GTA: London
Rumor - Grand Theft Auto: London for PS3 in Q4 2006
Dec 27th 2005 6:53PM (Joystiq)GTA: London makes no sense at all. Why would they create the whole GTA universe with Liberty City, Vice City, San Fierro, Las Venturas, and Los Santos and then just throw in a real city? It may be based on London, but it won't be called GTA: London