There are renewed calls for more doctors to be forced to make mandatory fitness-to-drive reports after a 92-year-old man diagnosed with moderately severe dementia was involved in a fatal crash after driving for seven hours trying to find his house.

Antonio Pupillo had been given the dementia assessment after scoring 17 out of 30 in a mini-mental state examination during a hospital stay in 2017.

Six months later he was involved in a crash with a motorcyclist.

An inquest was told that on the day of the incident he had spent more than seven hours driving around suburban Melbourne after becoming disoriented and unable to find his way home.