F1 teams threaten to boycott German GP over track safety . `` We are ready to drive our cars to the limit , as we always do , and as it is expected by our teams , sponsors and fans . '' Their association expresses grave concerns over events at Silverstone . Five drivers suffered mechanical failures in British Grand Prix . Fernando Alonso says they have to place trust in tire manufacturer Renault .
F1 teams threaten to boycott German GP over track safety . Their association expresses grave concerns over events at Silverstone . Five drivers suffered mechanical failures in British Grand Prix . Fernando Alonso says they have to place trust in tire manufacturer Renault .