A mechanic who tailgated and then undertook a car on the M50 during heavy rain was banned at the time.
Barry Coogan (36) was speeding and there was spray on the road.
Judge David McHugh adjourned sentencing until a date next month, telling the defendant he should "bring his overnight bag".
The defendant admitted before Blanchardstown District Court to careless driving as well as driving without insurance or a licence on the M50 northbound on July 16.
Sgt Mary Doherty said gardai saw Coogan take the Lucan ramp on to the motorway.
He was driving at speed and tailgating another vehicle before undertaking it.
Sgt Doherty said gardai activated the blue lights and sirens on their patrol car and Coogan stopped at the Ballymun exit.
She said he was driving in very heavy rain and there was spray on the road.
The court heard Coogan, of Glenview Lawns, Tallaght, had 19 previous convictions, including two for having no insurance.
Defence solicitor Valerie Buckley said the defendant is a mechanic and father of three young children.
She said Coogan was repairing his mother's car and had taken it for a test drive. She added that he thought he was insured to drive the car.
Ms Buckley had asked the judge to adjourn sentencing to next month so Coogan could spend the holiday season with his family.