The camouflage saloon car that Gui Guadong (a.k.a. Tsui Kuo-Tung) drives around the compound, has single headlights: just before it goes for its escape leap, it becomes a double headlight model: as going over the compound wall, it returns to single headlights; then once out and escape careening along the road, it becomes the double headlight car again.
Throughout there are seventies (era in which film was made) make up and hair on the female inmates - Danish soft porn actress Birte Tove especially (as Jennifer e.g with her matching long lashes, too) and Gui Guadong (a.k.a Tsui Kuo-Tung played by Lieh Lo) sports seventies style sunglasses, but most noticeable is the camouflage painted saloon car that arrives at the compound, remarkably like a sixties Toyota / Nissan ('Cedric'?) type.