1.   By the time the unmarked police car was thumping down the motorway to London, the sun teetered on the horizon.

2.   The men were being followed by an unmarked police car.

3.   He had seen them come out and get into the unmarked police car.

4.   An unmarked police car had been detailed to shadow it and report its ultimate destination.

5.   This Danish video system on an unmarked police car is used by the six forces taking part in the crackdown.

6.   The accused man Paul Beechey was driven into the magistrates court at Didcot in an unmarked police car.

7.   An unmarked black police car was also chasing the suspects, he said.

8.   An unmarked police surveillance car had left the Rodriguez family home and a helicopter had flown overhead.

9.   An off-duty emergency medical technician was struck and killed by an unmarked police car after he stepped off a bus in Brooklyn early Saturday, police said.