Person who gifted me with a car now wants it back?

What do I do? This person gave me a car 8 years ago for free. She was moving to China and didn't want it anymore. Now she's moved back... my parents have paid the insurance for 8 years and updated the tires, stereo and given it all its check ups. She wants it back, for free. Is that fair? She GAVE it to me as a gift! Can you take back such an expensive gift for free?
That's totally unfair
Might as well give it back
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The title is ours, not hers, the car has been in no way connected with her name for 8 years. We've replaced the tires, paid for all of the updates, oil changes etc. WTF.
Person who gifted me with a car now wants it back?
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