The crash happened near Birchmount Road and McNicoll Avenue. Police were called to the scene at 3:25 a.m.
Const. Hugh Smith told CBC Toronto that there were two young men in the vehicle — a late-model Porsche — at the time of the crash.
The car struck a tree and ended up in a yard.
The passenger was pronounced dead at the scene, while the driver was taken to hospital.
The crash remains under investigation.