Could something like this still being produced in current times? I remember that there were a lot of public nudity JAVs back then, and some like having sex in a car with a window open....
The public Chikan video which made the largest impression on me was CCD-01, a compilation which included scenes of full penetration on an in-service train line. (The company's method of hiding the sexual activity was the armada of other bodies blocking the view inside the car.)