Two drivers were banned from driving after being caught speeding over 130mph on the A23.
Eris Shala and Ali Marzouq engaged in a high-speed race along the northbound section near Handcross.
The duo was intercepted by PC Mark Fox and PC Claire Harrison of the Dogs Unit, patrolling in an unmarked vehicle.
Speeding remains a leading cause of fatal and severe injuries on the roads.
Both individuals were convicted of dangerous driving at Crawley Magistrates’ Court.
The incident, involving reports of racing on the A23 on April 28 last year, saw PCs Fox and Harrison in pursuit, eventually catching up with the racing cars, identified as a BMW driven by Shala, 22, from Havestock Road, Camden, and a Toyota Supra driven by Marzouq, 23, from The Meadow Way, Harrow.
During the January 10 court session, Shala received an 18-month driving disqualification, 300 hours of community service, five mandatory rehabilitation sessions, and was ordered to pay £375 in court fees plus a £114 surcharge.
Marzouq faced similar consequences, with an 18-month disqualification, 250 hours of community service, 20 rehabilitation sessions, and identical financial penalties.
Superintendent Rachel Glenton, Head of Roads Policing for Sussex Police, said: “This was a shocking example of dangerous driving.
“The officers in the unmarked patrol car reached 130mph and were not able to catch up with them while they raced on the three-lane carriageway.
“Fortunately, the officers were able to stop both vehicles before they reached roadworks which removed two lanes on the carriageway.
“The defendants’ reckless driving put their own safety and the safety of other road users at risk. We know that one in three collisions in Sussex are caused as a result of speeding motorists.
“We are pleased that two dangerous drivers have been taken off our roads.”
Sergeant Matt Songhurst from the Dogs Unit said: “This case demonstrated the professionalism of our officers, who are not only highly-trained dog handlers, but also ready to assist colleagues across the force.”