Penny Hulse, Deputy Mayor of Waitakere City, has today been confirmed Deputy Mayor of the Super City by Mayor-elect Len Brown.

South Island mayors will unite to fight the economic pulling power of Auckland's new Super City - a move that may hamper multi-billion-dollar dreams to unclog the city's roads.

Prime Minister John Key yesterday poured cold water on Super City Mayor-elect Len Brown's ambitious plans for rail.

The Super City, for which business pressure groups fought so long and hard, was not meant to end up like this.