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.
Teacher apologizes for showing sexual image of herself in class
Dennis Rodman pledges to end trips to North Korea