A sedan was a type of vehicle designed to be carried by people. Sedans were in use in one historical period of Sarpeidon, as could be seen with the help of the Atavachron. (TOS: "All Our Yesterdays" ) T'Pau arrived at Spock's Koon-ut-kal-if-fee in a sedan. (TOS: "Amok Time" ) T'Lar left the 2285 fal-tor-pan ceremony she performed for Sarek in a sedan. (Star Trek III: The Search for Spock) The script refered to this vehicle as a "sedan litter" A sedan chair was also mentioned in the script of "Cost of Living" , but the scene in which it was was cut from the final episode.