Lawyer Mark Geragos - working for his client Thaer Kamal - has reportedly contacted the Mean Girls actress' legal representative Shawn Holley claiming to have video evidence of Lindsay striking Thaer.
The footage also shows her getting out of the driver's side of the car, wobbling and getting into the passenger seat, where the passenger then takes over the wheel.
However, sources who were at the scene at the time have told TMZ.com it did not happen.
His lawyer has made it clear he has not yet gone to police and had an interview, and gave Lindsay's camp until Thursday to pay - it is not known if she has.
Thaer also reportedly told people at the scene he was not injured but changed his mind when he heard the troubled star was the one behind the wheel.
Lindsay hit out at the accusation she had "scraped" someone with her car last week on Twitter.
She said: "Scrape? This is all a complete lie. I've been at community service. Last night, I attempted to wish a friend happy birthday, which I didn't even get to do because I was freaked out by all of the paparazzi. These false accusations are absurd."
24.com publishes all comments posted on articles provided that they adhere to our Comments Policy. Should you wish to report a comment for editorial review, please do so by clicking the 'Report Comment' button to the right of each comment.
Brody Jenner is ''very proud'' of Bruce Jenner for revealing he is transgender and believes his father has never been happier. Read More »
Amal Clooney wants to complete one of her life goals by appearing on the cover of American Vogue. Read More »
South AfricaHomeMarkR15 000 - R20 000 Per Month
South AfricaHomeMarkR5 000 - R6 000 Per Month
HousesR 3 990 000
HousesR 11 000 000
HousesR 2 580 000