The video released Thursday shows the vehicle landing atop an SUV then rolling upside down onto the ground.
Authorities say the woman mistook the gas pedal for the brakes and drove her BMW through the retention wires on the seventh floor of the downtown parking garage, according to a news release from Austin police.
The woman driving the BMW mistook the gas pedal for the brake, sending the auto flying off the roof deck, according to police.
The impact of the crash sent the BMW bouncing off the back of the Tahoe before it comes to a rest on its roof.
GTT Parking, the garage's owner, said a similar incident happened in September 2016 in the same garage, but on a different floor in which no one was hurt.
"I was talking to my mom on speaker on my phone, and I heard all these loud noises and bangs", he said.
"I can just imagine what she was thinking when I had said, "a auto just landed on me, I gotta go", he said. Authorities said the woman was seriously injured. Amazingly, both drivers in the BMW and SUV were OK.
Her vehicle then smashed through the parking garage's barriers, violently landing into an alley below.
Littlefield was cited for unsafe conditions for its barrier cable systems in that incident.