Earth Two (Golden Age)
The Jokermobile was initially created by the Joker during a crime-spree in-which the Clown Prince decided to become a sort of anti-Batman. For this, Joker purchased a Joker-Signal, Jokercopter (or Jokergyro), and of-course the Jokermobile. With this tech, Joker sold his services to the other criminals of Gotham who he had use the Joker-signal to summon.
Batman used the Joker-Signals to try and track Joker, eventually finding his hideout but falling into a trap. After breaking free, Batman hijacked the Jokermobile to hunt down the Joker and arrest him.
The Jokermobile would re-appear in the story, "The Happy Victims" where Joker starts blackmailing people into commiting, "Funny robberies" while in reality Joker was bluffing his blackmail. Joker later makes the mistake of trying to blackmail Bruce Wayne, leading to Batman getting involved and foiling Joker's scheme.
Earth One (Silver Age)
The Jokermobile was first seen in Earth One used after Batman and Joker swapped consciousnesses due to a lab-accident. When Joker in Batman's body offered to reveal Batman's secret-identity to the criminal-underworld, Batman used the Jokermobile as a stand-in for the Batmobile to fight him.
The Jokermobile would go on to be used as a recurring vehicle for Joker's plots and get-aways. Most notably it was used for a team-up with Lex Luthor which Joker had. This occured when Joker and Lex started a company together, claiming to be going legit. However, the two were creating a legion of robotic "mechano-men" which they intended to replace Batman, Superman and Robin to ruin their reputations.
The post-crisis Jokermobile was first featured in Detective Comics #570 where Joker used it to kidnap a brainwashed Catwoman who knew Batman's secret identity.
It is mentioned years later by Harley Quinn who explains he stopped using it early into their relationship. Apparently, he was mocked for it by teenagers then after murdering the teenagers he abandonned the vehicle out of shame.
In DC's Rebirth, it is explained that the car was in-part designed by Charles Brown AKA Kite-Man.
- Telescopic punching glove:
In Other Media
- DCAU: There are two variants of the Jokermobile seen in the series, first in the episode Joker's Wild and secondly in Beware the Creeper. The first was a simple car with purple paint which was put on display in the Joker-themed casino, Joker's Wild. The second was much more customized and was used to try and escape from the Creeper. It has missile-launchers in the trunk and an ejector's seat.
- The Batman: In this TV series, Joker uses a Jokermobile-like vehicle.
- Batman: The Brave and the Bold: The Jokermobile is a recurring object in this series used by Joker.
- Batman: Arkham Knight: A variant of the Jokermobile is featured in a fear-toxin induced hallucination sequence during the game's climax. This Jokermobile is a nightmare version of the Batmobile, used by a hallucinated Joker in Batman's mind to massacre criminals and civilians alike. It has minigun turrets and a hideous red smile in the front.
- Suicide Squad: A purple Lamborghini Aventador Coupe owned by the Joker is unofficially referred to as the Jokermobile in this film. Joker crashes it in the river to try and escape from Batman while leaving Harley to drown.
- The LEGO Batman Movie: While no vehicle directly modelled after the Jokermobile appears, Joker is shown to have a stylized custom vehicle modelled after his aesthetics with weaponized features.
- LEGO Batman 3: Beyond Gotham: The vehicle is DLC for this video-game and resembles its silver-age incarnation.
- Batman: The Enemy Within: The vehicle is a car that John Doe steals when bringing Bruce to meet the Pact. If the player's choices influence John to become Vigilante Joker, he transforms the car into the Jokermobile. In a fight with a powered up Bane, the player can choose to have Batman ram it into him. Later in the episode, Batman and Tiffany Fox can inspect the Jokermobile for clues to Joker's whereabouts after he kidnaps Amanda Waller.