Police said it was the culmination of several incidents between a grey Daihatsu Four Trak 4x4 and a silver saloon car.

The incident started on the southbound carriageway of Baldovie Road just after 10am yesterday, police said.

After crossing from the northbound carriageway and cutting in front of the Daihatsu, which was travelling southwards, the silver car stopped and the driver spat at the 4x4.

The car then drove off and turned eastwards along Arbroath Road at the Claypotts junction.

The Daihatsu also continued in the same direction.

Several minutes later the Daihatsu turned right into the village of Panmurefield, the driver of the car drove out of the village and threw a large stone, which smashed the windscreen of the 4x4.

The car then headed off westwards towards Dundee.

The motorist police are hunting is described as a white man, aged in his mid 20s.

He had short brown hair and was slim to average build.

Police said there was another man around the same age in the front passenger seat.

A force spokesman said, “Anyone who witnessed the incident, or anyone who can identify the driver of the silver car, should contact Tayside Police on 01382 223200.”