 Complete the following phrase:  The disaster at the 24 Hours of Le Mans on 11 June which killed Pierre Levegh and over 80 spectators led to the cancellations of the French, German, Spanish and Swiss Grands Prix. The French round, which was supposed to be held at Reims between the Dutch and British rounds, on 3 July, was first rescheduled to 25 September and subsequently cancelled. Then the German event, scheduled for 31 July at the Nürburgring, the Swiss round at Bremgarten, planned to take place on 21 August, and the Spanish round, on 23 October at Pedralbes, followed suit. Pedralbes and Bremgarten were then abandoned and never used again for racing; motor racing was banned altogether in Switzerland and no circuit race was held in Switzerland until the 2018 Zürich ePrix. These cancellations effectively handed the Drivers title to Fangio after he finished 2nd to Moss at the 