May 28 (GMM) As the F1 calendar looks set to expand, the sport should consider culling Friday's 180 hours of free practice.

That is the belief of Williams' chief executive Adam Parr, who revealed he has proposed to have the traditional race weekend format condensed to just Saturday and Sunday.

F1 supremo Bernie Ecclestone visited the media centre at Istanbul Park on Friday, and smiled broadly when a reporter said he had heard rumours about 24-race calendars in the near future.

But according to Germany's Motorsport-Magazin.com, the 79-year-old Briton wants F1's three-day weekend to remain in place.

Parr, however, questions the entertainment value of the current Friday format, and is quoted by The Press Association as suggesting that cutting out Fridays will mean less equipment for the teams to transport.

"I can see the calendar going to 24 over the next two to three years, and I'm not sure whether logistically, with these longer weekends, it will be easy to do," he said.

Parr said he raised the issue recently in Barcelona, and teams including Ferrari, McLaren and Renault did not baulk at the idea.

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