The video reportedly shows a third figure in the car carrying the group which attacked several bars and restaurants, BBC reports.
It is not clear if this ninth attacker is one of two suspected accomplices detained in Belgium or is on the run.
The attacks also left more than 400 people wounded, with 221 still in hospital, 57 of them in intensive care.
Seven attackers, including two who lived in Belgium, died during assaults on a series of targets. The man, named Abdeslam Salah, 26, Belgian, is thought to be the man, who rented VW Polo parked outside the Bataclan concert hall, was stopped briefly by police on the French-Belgian border early on Saturday. He is now on the run, and described by police as dangerous.
The Belgian-registered black Renault Clio was found parked near Montmartre in northern Paris.
Investigators believe the car may have been used to bring the attackers to and from Belgium, from where French authorities say the attacks were organised.
Either Salah Abdeslam or his brother Brahim, named as another attacker, are thought to have rented a flat and two hotel rooms.
Images on French media of one of the hotel rooms being examined show syringes and tubes which could be bomb-making equipment.
President Francois Hollande on Saturday promised a “merciless” response to a wave of attacks by gunmen and bombers.
French jets bombed ISIS positions in Syria on Sunday. “The raid … including 10 fighter jets, was launched simultaneously from the United Arab Emirates and Jordan. Twenty bombs were dropped,” the Defence Ministry said. Today France and Russia bombed ISIS targets again.
On Wednesday President Francois Hollande is due to present plans to extend the state of emergency declared after the attacks by three months. He will also propose:
– Changes to the constitution to allow the government to revoke citizenship of any convicted terrorists of dual nationality. Currently only those born outside France and later naturalised can lose their citizenship
– Measures to speed up the expulsion of foreign nationals considered a threat to public order
– Budget increases and extra recruitment to security forces and judiciary.