If it were possible for something of value to come out of the hideous coronavirus plague, at least in Melbourne, it must be the cancelling the Formula One Grand Prix and one of the consequences that has just emerged. The race itself has long been a matter of controversy, partly because of the noise and general vulgarity of the whole thing, partly because it takes place in a public park that is being destroyed and also because of the secrecy that surrounds the commercial deal involved in staging the event every year.