(CNN) The young woman walked into a room filled with law enforcement officers. She had been invited to the suburban Orlando sheriff's office but was confused about why she was there.

Then they asked her to come up on stage, where one deputy ceremoniously unveiled a picture of a new Nissan Versa.

"It's yours," he said.

The woman, 20-year-old Samantha Rodriguez, was overwhelmed. For almost three years, she has been taking care of her five younger siblings. She's been keeping them clothed, fed and going to school every day -- all without the help of a car.

"When they told me the car is for us, I remember thinking, 'They just took away all these worries and stresses.'" she told CNN. "It was such a big weight off my shoulder and will help so much."

The Orange County Sheriff's Office shows Samantha Rodriguez a photo of her new car.

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