Mini
From Tardis Wiki, the free Doctor Who reference
A Mini was a type of car.
Mickey Smith once used his Mini to try to open the Heart of the TARDIS, but was unsuccessful. After this failed he used a large truck that Jackie Tyler had borrowed. (TV: The Parting of the Ways)
Amy Pond and Rory Williams used Rory's red Mini to get to the Royal Leadworth Hospital. (TV: The Eleventh Hour) The next year, they used another Mini, a beige one, to make marks on a crop field, shaped as the word 'doctor', to get the Eleventh Doctor's attention. (TV: Let's Kill Hitler)