What is valerie quennessen death cause?

Valerie Quennessen died on March 31, 1989, at the age of 33. The cause of her death was a car accident that occurred in Boulogne-Billancourt, a suburb of Paris, France. She was driving her car on a rainy day when she lost control, crashed into a wall and died instantly. She was survived by her husband, French director and producer Francis Huster, and their two children. Her death was a great loss to the French film industry, as she was a promising actress who had made a significant impact in a short period of time.