F1 bosses have sent an incendiary letter to the FIA following a claim that it is not worth $20bn (£16.3bn). read more »

Lewis Hamilton was among those to dismiss Jacques Villeneuve's latest incendiary claims about modern Formula 1. read more »

Red Bull motorsport advisor Dr Helmut Marko has claimed that the team's early season aerodynamic problems are partly the fault of former engine suppliers Renault.... read more »