Lewis Hamilton has been disqualified from the Chinese Grand Prix . The seven-time Formula 1 champion finished the race sixth on the road but post-race checks on his Ferrari discovered that it was not in compliance with the sport's complex technical rules. F1 regulations limit the amount of wear that it allowed to happen to the underside of a car during a race. This is to prevent teams from running their cars too close to the ground, which increases downforce and therefore performance. To