A taxi, also called a cab, was a means of transportation in which the user paid someone to drive them somewhere. (PROSE: Trapped!)
In 1994, Liz Shaw took a black cab from the train station to the P.R.O.B.E. office at Ashley House after visiting a conference regarding Hawthorne. (HOMEVID: The Zero Imperative)
The Tenth Doctor and Donna Noble tried taking a taxi to St Mary's Church in Chiswick, but the driver kicked them out when they realised neither had any money. Later, the Doctor rescued Donna from a taxi driven by a Roboform. (TV: The Runaway Bride) A taxi, apparently one of the very few cars not fitted with an ATMOS device, was used by the Doctor, Donna and Ross Jenkins to reach the ATMOS factory after ATMOS went haywire. (TV: The Poison Sky)
Sacha Mary Palmer chose to take a taxi home when she saw a strange man standing nearby; however, the taxi driver, Saric Warder, was a vampire and killed her. (PROSE: Trapped!)
The Eighth Doctor took Bill to Susie's place in a taxi when he started having chest pains. (PROSE: Mordieu)
When Stuart Hoskins and Sarah Clark first met, she didn't have money for a taxi so he took her home. (TV: Father's Day)
Lenny Kruger listed taxis as one of the things he missed about New York. (AUDIO: 1963: Fanfare for the Common Men)
In 2065, red wheel-less hovercabs were in service in Unity City. (COMIC: On the Trail of the Kaplan's Killer...)