Hubbard was facing 50 charges laid by the Serious Fraud Office after he and his wife were placed under statutory management by the government. They were to have appeared in court next week to appeal the move.
The utility vehicle had one occupant, 40-year-old Andrew John Earl of Nelson, who was assessed at Oamaru Hospital and discharged with cuts and abrasions.
A serious crash investigator has completed a scene examination and the investigation is continuing. Police say it could take a number of weeks.