#1 London doesn't gain anything from it
A statement by the spokesperson from London Mayor Sadiq Khan's office gives the impression that an event is possible.
London is always open to hosting the world's biggest and best sport events - from the final of UEFA Euro 2020 to the NFL, and the Cricket World Cup to Major League Baseball. The Mayor believes that it should be possible to organise a race in London in the future and has asked his team to explore options with F1.
But this is exactly why London doesn't need F1 and won't stand to gain anything substantial from a Grand Prix.
As it is, during the summer a host of sporting events are happening in London - most notably Wimbledon which invariably clashes with the racing weekend.
Even Formula E, which has held races in London has only used a circuit built within Battersea Park. F1 cars are much faster and them trundling at sub-par pace is not a great spectacle for the sport.
Edited by Alan John