Type 70

Type 70 was a type of TARDIS used by Time Lords. The Fifth Doctor noted that a Type 70 TARDIS could break through a temporal distortion grid, whereas his own Type 40 could not. (BFA: Singularity)

CIA Commander Vansell used a Type 70 TARDIS. (BFA: The Sirens of Time)

Robert Knox owned a Type 70, which could be voice controlled. (BFA: Assassin in the Limelight)

The Eighth Doctor once had to steer his TARDIS past a flotilla of Type 70s trying to locate him in the time vortex. (BFA: Embrace the Darkness)

A feature of the Type 70 was that it could pause its materialisation, Romana used this when changing time-lines whilst interrogating Commander Torvald, and always wanted to test it out. However she found it pointless when K9 told her that it lasted 2 microspans. (BFG: A Blind Eye)