The Lady in the Car with Glasses and a Gun (1970)

Director: Anatole Litvak
Cast: Bernard Fresson, Billie Dixon, John McEnery, Marcel Bozzuffi, Oliver Reed, Philippe Nicaud, Samantha Eggar, Stéphane Audran

Synopsis:

Dany Longo is blonde, beautiful, disturbed, passionate–and nearsighted. As she speeds through the south of France in a purloined Thunderbird on an errand for her employer and his wife, no one, including Dany herself, knows where she is headed–or why she is going there.