The Dundrod road course in Northern Ireland was the finest and most demanding British circuit of the 1950s. It had everything from a tight hairpin to numerous fast corners. The earth banks that lined the circuit meant that many of the corners were blind to approaching drivers and allowed no room for error. The circuit also suffered from bad weather and the financial problems of its promoters, the Ulster Automobile Club. Dundrod was always dangerous and it closed after three drivers lost their lives during the 1955 Tourist Trophy.