A driving instructor says one student drove 500 kilometres to sit his full licence test because of months-long wait times.

Counties Driving School's Alistair McGregor says the man drove from Pukekohe to Dannevirke.

The Government scrapped free driving test re-sits this year to cull long wait times.

McGregor says it's taking time to see any effect.

"The existing tests need to be worked through, so it's going to take a month or two - maybe a little longer - before it starts to ease."

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