Bernie Ecclestone wants to introduce "shortcuts" on Formula One race tracks to encourage drivers' overtaking for the sport's promoted entertainment, the F1 supremo said on Wednesday.

The idea would be another radical change to the sport with nothing similar ever having been adopted, but it needs to seek teams' support first.

"I've tried to push the teams with a number of proposals. Imagine a shortcut which a driver can use five times every race. It would stop people getting stuck behind others. It would be good for TV," Ecclestone told reporters at Ferrari's pre-season ski retreat in Madonna Di Campiglio of Italy.

Ecclestone complained that brakes in Formula One cars were too efficient and reduced the amount of overtaking which fans like to watch.

Despite believing the sport can be improved, the Briton reckoned this season would be among the best with Jenson Button, Lewis Hamilton, Fernando Alonso and the returning Michael Schumacher all on the grid.

Ecclestone confirmed an agreement had been signed to hold a grand prix through the streets of Rome in the coming years, although no date has been set.