Bernie Ecclestone has warned European Formula 1 circuits that they may lose their grands prix if they do not provide enough entertainment.
The F1 supremo is keen to see new venues added to the F1 calendar, which is expected to feature 20 races in 2013.
The 82-year-old told the sport's official website: "I suppose the next big thing will be Russia. Then we have to get this New York thing picking up again.
"Maybe we'll get the Europeans to wake up instead of thinking that it is a God-given thing. When Europeans perform and do their job we are happy to stay.
"We have to understand that we are in the entertainment business and this year we have entertained. All sports today are showbusiness and it gets dangerous for a sport if people start to forget that."
There could be eight European races next year, if Turkey can agree terms to rejoin the calendar.
