Closing city streets to make a circuit is long established in Monaco and Singapore. It allows an event without building a permanent track, at the cost of temporary safety works and heavy traffic management.

For this event, sections near the White House were closed. Barriers and safety fencing were installed temporarily, and surrounding roads were restricted before and after.

Street racing divides opinion. Those who cite city promotion and tourism face those who point to noise, congestion and risk.

Where historic buildings are dense, vibration and exhaust become part of the argument. This route also runs beside federal facilities and monuments.

We could not confirm details of the safety plan or any post-event review. What is confirmed is that the event took place.