Jayden McKenna, 28, pleaded guilty in Warrnambool Magistrates Court to serious driving offences, as well as family-violence related offending.

He was jailed for five months with 68 days already served in custody on remand.

Magistrate Mark Stratmann said the driving offences were "extremely serious".

"That is the most risky driving I've heard for some time," he said.

The court heard that on September 10, McKenna was observed driving a black Holden Commodore at high speed on the Princes Highway near Allansford.

He was detected at 128km/h in a 100km/h zone.

McKenna did not hold a driver's licence.

Police activated their lights and sirens in an attempt to intercept the motorist, who continued to accelerate away at speed.

The court heard a milk tanker and a ute towing a trailer were travelling side-by-side in the Warrnambool-bound lane when McKenna approached and maneuvered between the two vehicles.

The ute was forced to veer off the main carriageway, while the tanker took evasive action to avoid a collision.

Police abandoned the pursuit for safety reasons.

McKenna was later observed parking the vehicle near trees off Warrnambool's Rogers Avenue.

The vehicle was towed the following day and forensically analysed.

McKenna called the police station on September 12 and attempted to report the vehicle stolen, but when asked to attend the police station to formally make the report, he never appeared.

Then on September 20, McKenna attended a Warrnambool car yard where his vehicle was being held about 1.30am.

With the help of a co-accused, McKenna used unknown implements to access another vehicle, ripping apart the wheel columns and removing the car battery in an attempt to get his own vehicle to start.

They were unsuccessful.

McKenna was later arrested and remanded in custody.

He also pleaded guilty to assaulting his mother and causing damage to her home, driving on methamphetamine and on another occasion, refusing an oral fluid test.

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