A 21-year-old man, who was driving their car, was airlifted to Whangarei Hospital by the Northland Rescue Helicopter in a stable condition. An 8-year-old child in the same vehicle was also taken to hospital.
Judge Greg Davis said the sentencing would be put on hold while restorative justice meetings were held with the families of the women.
The judge said the families had decided it was "too soon" to begin the process, given it had been less than a week since the women died.
Springer was charged with two counts of careless use of a motor vehicle causing death and one of careless use of a motor vehicle causing injury. The charges carried a maximum penalty of three months jail and $4000 fine.
He left the court with his lawyer, Mike Dodds, and court security staff shielding him from the media.