Toronto police found the car, which they say was stolen, abandoned in the parking lot of a commercial space at 67 Westmore Drive in Etobicoke on Canada Day.
Two people, Maria Voci and Christopher de Simone, died as a result of the shooting.
Last week, police released a video of the man they consider the suspect in the shooting at Moka Café. It showed the man pulling into the parking lot in the car and walking into the café.
The suspect is described by police as a 6" black man with a muscular build.