Janis! Is that a Type 40 Prius? Wait, no, it has a working
   chameleon circuit. Bend spacetime, it'll fit in your TARDIS...
   although you may end up creating a timeloop that destroys the
   galaxy. [I'd say Universe but... well, there's holes in this
   spacetime curvature.. - it allows for some Hawking Radiation to
   spew out enough information to safely contain the negation of
   existence to a local event]