Bernie Ecclestone says he lacks enthusiasm to expand Formula One in the USA despite the size of the country's potential market.
The US Grand Prix returned to the calendar in 2012 and the fourth race at the Circuit of the Americas outside Austin is set to take place next weekend. A deal for a second race around the streets of New Jersey fell through in recent years, and while Ecclestone recognises the significance of the American market, he says he lacks enthusiasm for growing the sport stateside.
"We ought to try to be for a little bit in America, but it's hard for me because I'm not very enthusiastic about America," he told Russian broadcaster RT.