A passenger on a dual carriageway has been filmed hanging out of a car window at 60mph to clean his friend’s BMW for “banter”.<br /><br />A video has emerged showing the incident, which took place on the A1 on Saturday afternoon near Grantham.<br /><br />Police have condemned the stunt as “deplorable” and said the driver and passenger had been reported for several offences.<br /><br />In the footage, captured on a police dashcam, the front seat passenger can be seen hanging out of the window during torrential rain as the car hurtles down the dual carriageway in the fast lane.<br /><br />He appears to pretend to clean his friend’s BMW as they overtook it.
