Former F1 driver Narain Karthikeyan believes the sport has become "completely unsustainable" for the smaller teams... read more »

Mercedes chief Toto Wolff believes the manner in which the top teams in Formula One are spending money is not a viable long-term strategy... read more »

The level of spending of Formula 1's top teams is unsustainable in the long term, reckons Mercedes motorsport chief Toto Wolff. read more »

FIA president Jean Todt says there is no question that costs must be brought down in Formula 1 is the sport is to maintain its current grid read more »