Police have warned boy racers they could have their vehicles seized if a controversial high-performance car rally hits the capital this weekend.
Thousands of people have joined a Facebook group for the London Tunnel Run, an annual parade of souped-up vehicles around the capital's roads.
Organisers have not yet revealed the route of Easter Sunday's late-night event, but promise a "huge static" meet-up at 8pm before the cars wind their way through London for up to three hours.
The Facebook page states: "The route will be a mix of eight tunnels, various bridges and famous landmarks."
Participants, many heading into London from Essex and elsewhere in the UK, are also promised a stop-off at the London Eye.
Footage from previous meet-ups, which sparked a string of complaints from east London residents, shows cars driving at speed through the tunnels and the area around Canary Wharf.
However, Tower Hamlets police urged the drivers to stay out of the area and warned they would be clamping down hard on anyone who did.
In a statement published online, they warned: "Any unnecessary noise, antisocial behaviour or traffic offences will be dealt with robustly to prevent disruption to the community and other road users."
Police said a dispersal zone had been authorised, while extra patrols would be set up around Westferry Circus and Canary Wharf.
It added: "Please be warned and do not come to the area for this event and risk losing your car."
But a spokesman for event organisers Essex Cruising accused the police of overreacting.
He said: "It's a social gathering and nothing for the police to worry about. We will only be passing through like normal road users.
"To be honest I'm not really sure what all the fuss is about. We pay road tax to drive on a public road."
He added: "I think it's a little over the top and would probably be a waste of time and money."
A Met Police spokeswoman said: "We are aware of this event, which runs every year and sees groups gather at various locations to drive together in convoy along a specified route.
"Previously police in Tower Hamlets have experienced numerous calls relating to excessive vehicle noise, anti-social behaviour and inconsiderate driving. There have also on occasions been reports of dangerous and reckless driving.
"As a result, we will have an appropriate policing plan in place with a number of officers on duty around the route."
