Two men suffered minor injuries after their vehicle left the road.
The incident took place in Rowhedge Road, Rowhedge, near the junction with Chapel Street.
They were the driver and passenger in a Ford Galaxy, aged 58 and 66, from Colchester.
Their vechicle swerved to avoid a car travelling in the opposite direction and left the road.
But the other car failed to stop.
Now Essex Police are appealing for witnesses to the incident which took place at about 10.25pm on Saturday, December 1.
Officers are continuing their enquiries to locate the driver, who they want to speak to, and ask them and any witnesses to contact PC Alan Marks in the Stanway Roads Policing Unit on 101.
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