1980 / World Championship for Makes
Feb
3
XIX Daytona 24 hours
Daytona International Speedway
Mar
16
XIV B.O.A.C. 500
Brands Hatch Grand Prix Circuit
Apr
13
V Mugello 6 hours
Autodromo Internazionale del Mugello
Apr
27
V Monza 6 hours
Autodromo Nazionale di Monza
May
11
V Silverstone 6 hours
Silverstone Circuit
May
25
XXVI ADAC Nürburgring 1000 kms
Nürburgring Nordschleife
Jun
14
XLVIII Grand Prix des 24 heures du Mans
Circuit de la Sarthe
Jul
5
XIII Watkins Glen 6 hours
Watkins Glen International
Jul
26
XXVIII Spa-Francorchamps 24 hours
Circuit de Spa-Francorchamps
Aug
17
V Mosport 6 hours
Mosport Park
Sep
7
VIII Vallelunga 6 hours
Autodromo Vallelunga
Sep
28
III Dijon 1000 kms
Circuit Dijon-Prenois