New tougher driving tests have seen a dramatic fall in the pass rate for learner drivers, with just 39 per cent getting the green light, down from 80 per cent.
Nearly 1500 would-be drivers have so far been tested under the new regime, which came into effect two weeks ago.
The New Zealand Transport Agency (NZTA) said the sharp drop in pass rates was expected.
"The new test is much more challenging and a much higher standard of driving is needed to pass, that is the whole point and we make no apologies for that. The new test demands more practice and more preparation, and it will take some time for that message to filter through," NZTA chief executive Geoff Dangerfield said.
"As it does and as more young drivers put in the kind of preparation and practice needed to raise their skills to the level required to pass the new test it's likely that the pass rates will begin to climb."