In the wikipedia article about the new 2009 stock for the victoria
line I came across this:

"The trains will have eight cars, with seating for 252 and standing
space for an estimated 1196 passengers. Unlike the 1967 stock, the
trains will be built to take advantage of the Victoria Line's
unusually large loading gauge (for a deep tube line). This will
prevent them leaving the line except by road, however."

Is this true? It seems a strange thing to do. If it is , how much
larger are they?

B2003