M4 traffic grinds to a halt due to a broken-down car, causing significant delays and congestion. Drivers are warned of a 60-minute delay and 3 miles of congestion on the eastbound lanes between Junction 3 and Junction 2. The incident occurred under heavy rainfall, with vehicles piling up on the major motorway. The M4 westbound remains clear, but the situation highlights the impact of a single breakdown on traffic flow. National Highways announced that the car has been moved to the hard shoulder, and all lanes are now open, with delays reduced to 15 minutes and clearing quickly. This incident serves as a reminder of the importance of vehicle maintenance and the potential impact of breakdowns on road congestion.