Look at the details! The dog bowl says ‘Loki’, and the license plate is “ASG4RD” or Asgard.
It’s cut off in the gif, but the mom’s coffee cup has a Stark label on it.
I still declare that the best part of this is that she’s a little girl cosplaying Thor. :3
I agree with the headcanon that Thor was just casually flying past at the time and saw this little girl and thought, “This young maiden wishes to emulate her hero. I SHALL ASSIST HER!” and then makes lighting shoot out of her hammer so that the car explodes and flies off with the biggest grin on his face.