Type 97
Type 97 was a type of TARDIS used by Time Lords. The Second Doctor was assigned a Type 97 TARDIS while working with the Celestial Intervention Agency. (PROSE: World Game)
A Different TARDIS
The Type 97 lacked the telepathic relationship with its pilot(s), a fact that filled the Doctor with disgust. To him it felt different and alien, and he was against using it because after years of telepathic rapport, a Type-40 was "an old friend." Serena thought a telepathic relationship with a TARDIS was "sentimental nonsense" and compared his to an old relic. She had the task of piloting the craft for most of the mission.
This TARDIS had a fully functioning Chameleon circuit, and a completely different console configuration. The time-vector generator was strangely shaped and placed in the center. and would dematerialise with a pleasant, crooning sound. It took on the shape of a fountain, a pavilion and a clock. Serena changed the interior at the Doctor's request into an 18th-century tea room.
Sardon and Lady Serena did not understand the Doctor's distaste for the newer, improved TARDIS. He claimed they were "soulless" after piloting one, and that there was no "real rapport." Sardon allowed him to