London - Formula One boss Bernie Ecclestone says his series and NASCAR won't be competing for the same motorsport fans when they hold races 300km apart in November.
Ecclestone dismissed on Wednesday any clash between the series, after the top executive at Texas Motor Speedway called F1 "arrogant" for scheduling the United States Grand Prix in Austin on the same weekend that his track hosts NASCAR.
"I absolutely think it's foolish," said Eddie Gossage, the track president and general manager.
"It's a shot fired by Formula One at NASCAR. I can't say I was surprised because Bernie Ecclestone does a lot of foolish things.
"The thing he unfortunately doesn't recognize is there is an 800-pound gorilla when it comes to major American motorsports.
"The 800-pound gorilla is NASCAR."
Texas Motor Speedway in Fort Worth will host NASCAR's Texas 500 on November 2, the same day F1 will hold its only race in the US this year.
Fort Worth and Austin are about three hours apart at lawful driving speeds.
While Gossage thought a stronger stance by the management at Circuit of the Americas would have prevented the scheduling issue, Ecclestone believed it was a non-issue.
"I've also spoken to the people that run the race at COTA and their position is that they believe the NASCAR crowd is a different crowd to Formula One, different people, different customers," Ecclestone said.
"At the end of the day they run a domestic series in America - we run a world championship."
And that requires considerable logistical planning by F1 teams.
"We've a small problem they (NASCAR) don't have - we have six jumbo jets to move around all our equipment, and we have to find the most sensible way to use them to do that," Ecclestone said.
"We have to be efficient, and bear in mind we may also encounter problems at an airport.
"There are issues that can occur, but (Gossage) and other people do not realize these things.
"The race prior to the one in the U.S. is in Russia, in Sochi.
"We've never been before, and we have to get out of there and into Austin.
"That is probably a lot easier than trying to get into Brazil, and then we have to get out of there (Sao Paulo) to go to Abu Dhabi."
Gossage said F1 could have found another weekend to race in the U.S.
"It's just not smart," he said.
"There's 52 weeks in the year.
"But that was the only weekend that Formula One could make it work in Austin, Texas.
"Give me a break."