The 26-year-old German secured his first podium finish in F1 at the 2009 race but has not improved on that result . F1 drivers threaten to boycott German GP over tire safety . The sport's governing body has been under fire for its handling of the issue and is expected to announce a new set of regulations next week. Five drivers suffered tire failures in British Grand Prix . Fernando Alonso says they have to place trust in tire manufacturer Pirelli .
F1 drivers threaten to boycott German GP over tire safety . The sport's governing body has been under fire for its handling of the issue and is expected to announce a new set of regulations next week. Five drivers suffered tire failures in British Grand Prix . Fernando Alonso says they have to place trust in tire manufacturer Pirelli .