Red Bull team principal Christian Horner believes Formula 1 may have gone too far with the new radio restrictions and is concerned it will reduce its entertainment value.From this weekend's Australian Grand Prix, there will be a stricter enforcement of the rule that states "the driver shall drive the car...

Formula 1 chief executive Bernie Ecclestone has hinted that there could be further rules tweaks to make drivers work harder, in the wake of the controversial team radio clampdown.From this weekend's Singapore Grand Prix, F1 teams have been told that they are not allowed to give any advice to drivers...