AMGTV is an American family-oriented television network.
The 1980 Silverstone 6 Hours , was the fifth round of both the World Championship for Makes and FIA World Challenge for Endurance Drivers , and was held at the Silverstone Grand Prix circuit , on 11 May .. World Championship for Makes. 1980 World Sportscar Championship season. FIA World Challenge for Endurance Drivers. 1980 World Sportscar Championship season. Silverstone Grand Prix circuit. Silverstone Circuit