sentences:  The championship started in January in Argentina with a new race to the calendar, the 1000 km Buenos Aires, but the 24 Hours of Spa was omitted.The 1000 km Nürburgring was originally scheduled for the 29th of August, however once it became clear that the Mercedes 300 SLRs would not be ready in time, the race was cancelled with organisers fearing another poor attendance.The Championship remained as a competition for manufacturers, and works teams including Scuderia Ferrari, Lancia, Aston Martin and Jaguar lead the way.