Grandma dies in the crash, while Rose eventually catches up to Chris’s car, shotgun still in hand.
Unfortunately for him, Grandma and Grandpa Armitage’s avatars are on his trail, and the car is wrecked in the process.
After setting the Armitage house on fire and being pursued by Rose, Chris tries to flee by car, thus triggering the finish for Get Out’s tense third act.
Grandpa Walter runs in for the assist, but after Chris flashes him with his phone camera’s flash, he temporarily disassociates with his body, leaving the original occupant back in control of his body for the time being.