The Audi Urban Future Summit, held at The Squaire in Frankfurt, brought renowned researchers and experts together, and one thing emerged with great clarity: There is no such thing as the megacity. A city like New York will develop in a completely different way from Frankfurt am Main, Mumbai or Mexico City in terms of its structure and mobility. Before solutions are possible, the city in question therefore has to be examined closely in order to start by defining the right questions. The answers then relate to local needs – and at the same time have the potential to produce solutions with global reach.