It is understood Samantha hit the auto windscreen as a result of the collision and fell to the vehicle's floor mat.
Her boyfriend, Mark, told the publication that they had been driving in Florida when they experienced a "paparazzi confrontation" that led to them crashing their auto into a concrete barrier.
It is unclear what part of the state, but her Facebook page says she lives in Miami Beach. She declined to reveal exactly what she bought because "then it wouldn't be a surprise". She's way out of her league to tell me that I can't speak.More news: Tesla refutes reports it rejected extra autopilot safety features over costs
Meghan Markle's estranged half sister is taking the blame for a series of "staged" paparazzi shot of their father ahead of the royal wedding. "As we know the media can take very unflattering photographs of people on their casual days and blow it way out of proportion". "I said, really you need to show the world that you're getting in shape and doing great healthy things".
Image tweeted by Samantha Markle showing Samantha and Meghan together in happier times.
Reports suggest the procedure has been completed and Thomas is alert and coherent, telling TMZ he believed doctors had implanted three stents in his blood vessels.
He added: "I'm ok".
It is not clear when Thomas will be released from hospital.