Portia waved goodbye to her sister to take her skills test. Moments later, she returned to the DMV to put the car in park and revealed she had passed the test.

Portia's tears continued to fall in disbelief as she stood beside "Portia's new Porsche," as someone in the video called the car. Both of her parents hugged her and smiled while holding their teen.

Richards and Unmansky share daughters Alexia, 27, Sophia, 24, and Portia, 16. Unmansky also helped raise Farrah, 35, whom Richards welcomed during her first marriage to Guraish Aldjufrie.