Dozens of drivers face prosecution after racing their cars at speeds of up to 80mph on a dual carriageway close to the Lakeside shopping centre on Saturday.
Essex Police said officers used unmarked cars fitted with video recording equipment to identify those taking part in a "drifting" event.
Offenders have been identified through vehicle index numbers and they will be summonsed to court for speeding and road racing offences, the force said today.
SEE FOOTAGE FROM SATURDAY'S EVENT...
