Questions have abounded the whole way through. What's the cost? How much is it? Two billion dollars is in the Auckland transport alignment programme, but the latest estimate that's been made public by the Deputy Prime Minister is that it's somewhere between $6 billion and $8 billion. There's no idea about the route. Does it go to the airport or does it not? How many stops are there? Is it a mass transit system in which there are lots of stops along the road or is a rapid one in which there are very few? What even is the rail? Is it heavy rail or is it light rail or is it a combination of the two? Does it go underground? Does it go over ground? We don't know.