The driver said she started the parked Mercedes GLA 250 and it just took off, slamming into the building at a residential complex on Morningstar Road around 9 a.m. Wednesday, May 10.
She wasn't injured, responders said.
Hawthorne police and firefighters responded along with a building code official who deemed the damage significant.
Citywide Towing removed the Mercedes on a flatbed.
Boyd A. Loving took the photos and contributed to this story.
Click here to follow Daily Voice Highland Lakes-Vernon and receive free news updates.