National will require car insurer details to be displayed on registration labels if it wins the election.

Leader Judith Collins revealed the policy on Newstalk ZB during an hour of talkback.

National also wants to link the motor vehicle database with insurer details, to help assist in the smooth exchange of information.

Collins told Kerre McIvor it'll make things easier for insured drivers.

“What we want to do is encourage people to take car insurance and make it a lot easier for everyone else who’s on the receiving end of a crash or involved in a crash.”

She says the policy is a cheaper alternative to mandatory insurance.

“This is the first step to give people the opportunity to do the right thing, and the issue has always been that the cost of that and the enforcement of it and the verification can be very difficult.”

She also revealed National would completely repeal major rental reforms.

The Residential Tenancies Act - passed under urgency last week - includes a ban on rental bidding and no-cause evictions, and limits rent increases to annually.

A bid to remove a tenant will also have to go through the Tenancy Tribunal.

Collins says those changes would be out the door.

“Why would you send out that kind of message, that you can have your rowdy parties, you can have your dogs all over the place, you can abuse your neighbours, you can cause all kinds of mayhem and actually cause tremendous stress.”

The opposition leader also believes we will see the demise of New Zealand First this election.

The latest 1 NEWS Colmar Brunton Poll has the party on two-percent -- falling short of the five-percent threshold.

A poll on candidate support also has National's Matt King sitting at 46-percent in Northland -- far ahead of New Zealand First's Shane Jones on 15.

Collins says National won't work with New Zealand First -- and they won't be back.

“There are people in the NZ First party I get on very well with. I don’t have any personal animosity for Winston Peters. You’ve got to give someone credit for hanging in there so long.

“But the best thing we ever did in the 2008 campaign was rule them out.”

Collins committed National to ending the tahr cull, calling it unfair because people pay a lot of money to hunt them.

She says when we can loosen border restrictions, some people will pay around $50,000 to come to New Zealand to shoot a tahr - boosting the economy.