The man accused of the fatal Bourke Street tragedy, Dimitrious Gargasoulas, is too mentally unwell to attend court, his lawyer says.
Mr Gargasoulas, 27, was scheduled to appear before Melbourne Magistrates Court on Thursday on unrelated charges to the six murder counts he faces over the January 20 tragedy, when a car fatally hit six people and injured dozens of others.
But his case went ahead without him either present in court or appearing via video link, and defence counsel Tass Antos said Mr Gargasoulas was mentally unwell.
"He is not very well," Mr Antos told magistrate Angela Bolger.
"He has certain issues which are being explored in relation to his mental health and wellbeing.
"Bringing him to court or having him appear would not do his health any good."
The past two times Mr Gargasoulas has appeared before a magistrate, via video link in April and May, he made unprompted rants, which included declaring himself "the saviour" and not guilty, and claiming the Illuminati were to blame for the six deaths.
Last month, the Supreme Court was told Mr Gargasoulas could plead that he is unfit to stand trial on the murder and 28 attempted murder counts he faces, and the unrelated charges.
The unrelated charges include driving, drug, assault and theft offences and were all laid by police before January 20.
The Supreme Court was told Mr Gargasoulas' lawyers were trying to have him assessed by mental health experts.
Mr Antos reiterated that plan on Thursday, but said having his client assessed by medical experts would take some time.
Six people died, including a three-month-old boy and a 10-year-old girl, after Mr Gargasoulas allegedly drove into them about 1.30pm on January 20. Dozens of people were also injured and were treated in hospital.
Mr Gargasoulas remains in custody. He is due to return to court on the murder and attempted murder charges next week.
Ms Bolger adjourned his case on the lesser charges until October.