Thousands lined the streets outside Battersea Power Station on Sunday while millionaires arrived in their stickered-up flashy motors.
While organisers had clearly hoped to drum up excitement, locals tell SundayStar.co.uk that it was a "miracle no one got hurt".
Miffed-off resident Liz Owen says she spotted car-lovers, hoping to get a good view of the action, "breaking into building sites".
She told SundayStar.co.uk: "From 6pm supercars not in the event were revving their engines all along Nine Elms Lane near Battersea Power Station."
"No marshals or security guards were on the main road," she explained.
"People were wandering about everywhere, breaking into building sites and even stealing windows from said sites."
Ms Owen claims some of the attendees even attempted to get into her apartment block to use the loo – while motorbikes were "pulling wheelies".
After calling cops "many times", Liz was told the Met "didn't have enough resources to attend" – even when neighbours were "abused".
"There was broken glass everywhere," she explained. "A total mess… everyone has gone now. It was about 11.30pm before it went quiet.
"This should never be allowed to happen again. How nobody was hurt is anyone’s guess."
On Twitter, another angry resident wrote: "It’s carnage. Roads blocked, unsafe on roads, people and cars blocking roads / emergency exits.
"It is not at all sustainable / environmentally friendly.. awful. A very disappointed neighbour."
User @tomrobertson02 replied: "The disgrace is the security firm deciding to end the event 5 minutes before the celebrities arrived.
"The gumball organisers didn’t ask for that."
SundayStar.co.uk has approached Gumball 3000 and the Metropolitan Police for comment.
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