Shocking video shows man in passenger seat as car drives down highway in cruise control

Alarming video has emerged of what appears to be a car travelling down a Victorian freeway with a man sitting in the passenger seat, but with no-one in the front seat.

The video shows a man's legs in the passenger seat as the car travels down the Calder Freeway.

There doesn't seem to be anyone in the driver's seat.  Source: 7 News
There doesn't seem to be anyone in the driver's seat. Source: 7 News

The camera then pans over to the driver's seat, which appears to be empty as the car is moving.

The car is believed to have been set to cruise control on a 110km/h stretch of the freeway, near Castlemaine.