The player names their character (the default is Sid Vacant, a parody of Sid Vicious and the Sex Pistols song "Pretty Vacant") and chooses a picture to represent them. The picture is only seen upon completion/failure of a mission and doesn't affect the appearance or personality in any way. The player must work for The Crisp Twins, a parody of The Kray Twins. The expansion introduces 30 new vehicles, 39 new missions, and instead of fictional locations based on real-life cities, as in Grand Theft Auto (Liberty City, San Andreas, Vice City or any of the later entries to the game), the game takes place in London in 1969. The player again plays the role of a criminal involved in organised crime. The temporal setting has been exploited through cultural and historical references, including the appearance of a James Bond-like character and use of stereotypical Cockney slang. In-game dialogue includes such lines as "Oi! Stop right there!", "You're nicked!" (under arrest, in place of the standard "Busted" message) and "You're brown bread!" (i.e. "You're dead", replacing "Wasted"). Similar to the bonuses in Grand Theft Auto and Grand Theft Auto 2, the player receives a large cash reward for running over a group of English "Mods" with a car without braking. Successfully performing the trick displays the message "KEEP LONDON TIDY!" or "QUADROPHENIA" and awards a cash bonus. This is a reference to an album by the English band The Who.