Mans, lifted their complete ban on 14 September 1955. On that date, the Ministry of the Interior released new regulations for racing events and codified the approval process that future racing events would need to follow. In contrast, Switzerland's ban, which also extended to the running of timed motorsports such as hillclimbs, was not quickly lifted. This forced Swiss racing promoters to organize circuit events in foreign countries including France, Italy, and West Germany. In 2003, the Federal Assembly of Switzerland started a lengthy discussion about whether this ban should be lifted. The discussion focused on traffic policy and environmental questions rather than on safety. On 10 June 2009, the Ständerat (upper house of the Swiss parliament) defeated a proposal to lift the ban for the second time. In 2015, the ban was relaxed for electric vehicles only, such as cars involved in Formula E electric racing. The next round of the World Sportscar Championship at the Nürburgring was cancelled, as was the non-championship Carrera Panamericana. The rest of the 1955 World Sportscar Championship season was completed, with the remaining two races at the British RAC Tourist Trophy and the Italian Targa Florio, although they were not run until September and October, several months after the catastrophe. Mercedes-Benz won both of these events, and was able to secure the constructors championship for the season. Having achieved that, Mercedes withdrew from motorsport. The horror of the crash caused some drivers present, including Americans Fitch (after completing the season with Mercedes), Phil Walters (who had been offered a drive with Ferrari for the rest of the season), and Sherwood Johnston, to retire from racing. Macklin also decided to retire after being involved in another fatal crash, during the 1955 RAC Tourist Trophy race at Dundrod Circuit. Fangio never raced at Le Mans again. At the Circuit de la Sarthe, the audience stands at the pits were demolished. Much recrimination was directed at Hawthorn, saying that he had suddenly cut in front of Macklin and slammed on the brakes near the entrance to the pits, forcing Macklin to take desperate evasive action into the path of Levegh. This became the semi-official pronouncement of the Mercedes team and Macklin's story. The Jaguar team in turn questioned the fitness and competence of Macklin and Levegh as drivers. The initial media accounts were wildly inaccurate, as shown by subsequent analysis of photographic evidence conducted by Road