Kelly Bensimon says she's lucky to be alive after horror head-on crash left her unconscious

Kelly Bensimon said she was "lucky" to be alive after a horror head-on crash sent the Uber carrying her and celebrity chef Andrew Molen spinning.

Bensimon and Molen detailed the terrifying moments after an oncoming vehicle slammed into the Uber carrying them, describing a violent impact that left the former "Real Housewives of New York City" star briefly unconscious and both hospitalized.

"I’m lucky to have walked away alive," Bensimon told Page Six.

"My right arm is a mess," the real estate agent added. "My head went straight into the back of the seat. It was really bad. I was unconscious for a couple seconds. I was freaking out. I thought I broke my arm."

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The reality star said the violent impact left her disoriented and in agony.

"I am totally out of it, I am in so much pain," she said. "My head went back and banged [Andrew] on his chin. There were makeup marks on the airbag."

While Bensimon focused on the injuries she suffered, Molen described the frightening chain of events that unfolded in the seconds leading up to the collision.

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Molen recalled seeing the car coming at them and yelling, "brake, brake."

"[The other car] came straight on," Molen claimed. "You didn’t hear brakes screech. He came straight in at full blast. We got hit so hard. Kelly went flying. I hit the ceiling. Airbags went off. There was dust everywhere."

 "Kelly was out cold. She kept falling back," he said, "The car spun."

The crash didn't just leave Molen shaken. He said it also sidelined him professionally, forcing him to cancel five events as he dealt with lingering pain from the collision.

"I am in a lot of pain," he said. "They had to help us into ambulances."

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The crash came less than a year after Bensimon faced another frightening health scare.

The 58-year-old underwent a three-hour surgery to remove her breast implants after one ruptured. Doctors also tested her tissue for cancer, leaving her anxiously awaiting the results.

"It was a really, really difficult time," Bensimon told In Touch. "While you're resting, you're thinking, 'Do I have something? Am I going to be OK?'"