The man who Lindsay Lohan allegedly struck with her Porsche last week is demanding at least $100,000 from her.

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 before 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 yesterday 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.