History[edit | edit source]
As the Doctor had told his first TARDIS when they reunited after six centuries, (AUDIO: Prisoners of Fate) he had been leaving in a hurry, and he had to steal the first TARDIS he could "lay his hands on," so he couldn't take his old Type 50.
However, an echo of Clara Oswald appeared and told him he was making "a very big mistake" by stealing the wrong TARDIS. She convinced him to steal a TARDIS with a "knackered" navigation system that would be "much more fun". (TV: The Name of the Doctor)