DeLorean

The DeLorean was a car which was used by Marty McFly and Doc Brown.

History
In March 2005, on the website Doctor Who?, a user going by the name "Marty McFly" claimed to know the Ninth Doctor, saying "I know that man, he stole my DeLorean!!!". (PROSE: )

The car was present at San Diego Comic-Con in the 2010s. (COMIC: )

The word "DeLorean" was written in a language next to a drawing of a device. (TV: )

Doc Brown once drove the DeLorean through the Brick Boulevard, where a confrontation was initiated with Peter Venkman and the Twelfth Doctor, in Ecto-1 and the TARDIS, respectively. The vehicles ultimately crashed into each other as Marty McFly, among others, watched. (WC: )

In non-valid sources
The DeLorean once flew through a room behind Doc Brown as he shouted "Great Scott!". Doc Brown later stood by the vehicle as Batman's Batmobile was rebuilt, and the vehicle was later present next to the Mystery Monster. Marty McFly later stood near it. After the room fell away and a child stood in the Land of Oz, they watched as the DeLorean flew away from a police car. (WC: )

Other matters

 * A DeLorean was converted into the time machine used by Doc Brown and Marty McFly in the Back to the Future films.