São Paulo is for sale. João Doria, mayor since 1 January, is planning to auction off South America's biggest city piece by piece: not only the racecourse, football stadium and carnival centre, but lighting, transport, health services and even the public funeral system. The glitzy promotional video is full of glass towers and night shots of glittering avenues; there’s no sign of the heaving lanes of traffic that blast and fume among concrete towers as far as the eye can see. There are few green or public spaces in São Paulo; the biggest, Ibirapuera Park, is now up for sale.