Rasa Bertrand was asleep in the passenger's seat while her husband paid for fuel at a service station in Melbourne Friday night.
A 16-year-old boy opened the driver's door of $150,000 silver Boxster and drove towards the city. Mrs. Bertrand, 57, awoke and struggled with the teenager, managing to escape unhurt.
The teen took the car on a 100-mile-per-hour rampage across the city, leaving a trail of destruction before being caught nearly 90 minutes later.
Mrs. Bertrand was left by the side of a freeway a few hundred yards from the service station.
Her husband, who was skipper of the America's Cup-winning yacht Australia II in 1983, said his wife was fine and did not want to discuss the episode further.