French Grand Prix cancelled for economic reasons by organisers
Canadian Grand Prix dropped by F1 supremo Bernie Ecclestone due to money owed by organisers
Chinese Grand Prix organisers in Shanghai considering withdrawal, after years of financial losses
Two-time world champion Fernando Alonso threatens to quit if standardised engine plans are passed. So do Toyota and Ferrari. The suggestion by the FIA, F1's governing body, is part of a major cost-cutting drive.
Honda quit, with speculation mounting that more small teams could follow.