Auckland Council leaders say the Government should take seriously a report which predicts a $2 billion central city rail tunnel would pay for itself more than three times over.

Transport Minister Steven Joyce has queried the inclusion of what consultants call "transformational" benefits in terms of extra productivity and concentrated urban development to justify early construction of the 3.5km tunnel from the western end of Britomart to Mt Eden.

Does Auckland's rail network need expanding? Here is the latest selection of Your Views: