Does the car revert to the trust of which my brother, sister and I are the beneficiaries?

I have been my mom's only caregiver for years. Earlier this year, she gave me her car as she no longer drove it. I was the one who took her to all of her appointments and she preferred riding in hers rather than mine. I didn't rush to register it in my name as I was on the insurance and there were still 2 payments to be made so we did not yet hold the title. The car was paid off and we were awaiting the title when my mom passed away. My aunts (2) gave me notarized statements stating that they were witnesses to the fact that my mom had gifted me the car prior to her passing to take to the DMV to assist in changing the owner of the car. Is this doable?