Christopher Eccleston was the only celebrity to use a Liana with an automatic transmission, because a hesitant Eccleston admitted he was " only qualified to drive an automatic . " To accommodate his needs, " Top Gear " succeeded in borrowing an automatic Liana, of which only 40 existed in the UK . As a reference to his role in " Doctor Who ", the automatic Liana was shown materialising onto the racing track, with a TARDIS materialisation sound effect played over it.