Are New Zealand licence classes the same as those overseas?

No, New Zealand licence classes may not be an exact match to those in other countries. It's recommended to refer to the New Zealand class definitions and understand the equivalencies to determine which vehicles you can drive on your overseas driver's licence. If there are differences in weight or limits between your overseas licence and New Zealand classes, it's advisable to adhere to the equivalent New Zealand weight limits or consider obtaining a New Zealand driver's licence if you're unsure.