Type 1

The TARDIS design was an early prototype TARDIS created by the elders in the ancient Gallifrey. These models had high malfunctions. Some were poorly conceived and dangerous, and some were hard to start, and some of them had minds of their own, and had a history of escaping from Gallifrey and roaming the Univurse at any number of seconds per second. Many of these leftover TARDISes would later cause trouble when they Collided with other things. (PDA: Heart of TARDIS.