Type 102

The Type 102 TARDIS was the first sentient TARDIS. It was created when the Doctor attached a remote receiver to his companion Compassion, who later evolved into a TARDIS after the receiver warped her biodata. (PROSE: The Shadows of Avalon) Epsilon Delta stole a Type 102 TARDIS and fled to Earth. He found its best features to be its highly reliable chameleon circuit and voice-activated lock. (PROSE: The Dimension Riders)