The historic disappearance of Mona Blades who vanished 38 years ago while hitchhiking from Hamilton to Hastings has been re-opened following reports of an abandoned car said to be similar to the last car Ms Blades was seen getting into. 

The 18-year-old was last seen getting into a Datsun 120Y station wagon on the Taupo-Napier highway.

Detective Inspector Mark Loper says a team will investigate the car over the next few days.

"We're going to go and have a look at it at some stage within the week and determine whether or not it's involved or is connected with any inquiry."

Detective Inspector Loper says it's not the first time they have had reports of abandoned cars similar to the Datson Ms Blades was last seen in.

Leah Wai Peneha, a woman who killed two people by driving the wrong way along a Wellington motorway while on P, has had a request to drink alcohol while on parole declined.

Peneha, a disqualified driver, killed two people on State Highway 2 near Upper Hutt in September 2005 after a P binge. She drove 300 metres on the wrong side of State Highway 2 and collided head-on with a car driven by Krystal Bennett, 18, who died in the crash.

Also killed was Khan Edwards, 12, a passenger in Peneha's car and her partner's son.

Peneha, now 26, was described by a judge as a "lawless menace", and was jailed for six years for two counts of manslaughter and two of dangerous driving causing injury.

Now living in Napier, Peneha appeared in Napier District Court on Wednesday and was convicted for breaching Parole Board conditions by failing to meet her probation officer on April 30. She was ordered to come up again if she reoffends in the next six months.

Peneha's sentence ended on April 30. She had been released on parole last May but had been recalled briefly in January with conditions to run until October.

At a progress hearing before the Parole Board last month Peneha asked if she would be able to possess and consume alcohol. She is at present banned from doing so.

The board said it was "not prepared to entertain that request today" but would note it for consideration at a hearing in July.

"We expect a decision on that would be somewhat dependent on the progress that Ms Peneha is able to demonstrate at that time," the board said.

The report said the circumstances related to her recall in January had been "traumatic to say the least" but she now had renewed confidence toward studies she was doing.

The board wanted to ensure Peneha's reintegration was "taken cautiously and step by step".