  These are the unlicensed taxi drivers that ply their business in the West End late at night and during the weekends. They're just ordinary car owners but for the price of a normal taxi they'll take you home but it's a bit of a lottery. They don't know where they're going, they're not insured and they're not professional. You may also get a decent car or a wreck. If you're a single woman, don't even think about it. I wouldn't even think about it if there were just two women. There have been cases of these drivers raping vulnerable women so avoid it. Tiger Tiger has a licensed taxi despatcher just inside the door, use them. The price will be the same but they're insured, professional and won't endanger your life. We call them taxi-minicab-taxi guys because when you leave Tiger Tiger, or any other West End club, at 3am, there can be up to 40 of these guys lining the exit shouting "Taxi? Minicab? Taxi? ". 
