Susan Mumford was driving along Grandview Highway, stopped at a red light at Bentall Street, when a man approached her vehicle, opened the driver's side door and demanded she get out.
"I was stopped at a red right and this guy came over and opened up my car door, and he wanted me to get out," she said.
Instead of handing over her car, Mumford hit the gas.
"I decided to gun the accelerator and dragged him a little bit. He got out, eventually. He fell off the car as I was taking off," she said.
Mumford eventually collided with a taxi, but she's not sure exactly how it happened.
"It went really quick. I was more concerned about getting the guy out of my car," she said.
According to police, the man then tried unsuccessfully to commandeer the taxi. He then threw himself on the hood of an SUV and ordered the driver to flee the scene.
The driver refused, and the would-be carjacker was arrested soon after.
Mumford said she didn't have time to be frightened, but said she had a bit of an "adrenaline rush."
"It was exciting, sort of," she said.
She doesn't know if she made the right choice, but, as far as she knows, no one got really hurt.
"I think that everything turned out OK," she said.
"I'm afraid that maybe if I would have stopped and let him do what he wanted, maybe there might have been more damage, possibly. I don't know. I mean, It's hard to say."
Mumford said from now on, she'll make a habit of locking her car doors when she's in the vehicle.