Barely three weeks into the new F1 season and already some of the sport's top figures are debating changes to the new regulations.

Ferrari President Luca di Montezemolo flew to London on Wednesday for talks with F1 Chief Bernie Ecclestone as the opening two races in Australia and Malaysia failed to meet with expectation.

The new 1.6L V6 turbo engines and their sophisticated Energy Recovery Systems (ERS) have drawn criticism from multiple sides for the lack of noise though the actual tone of the engines has been largely welcomed.

Issues with fuel-flow sensors, notably at Red Bull, still leaves an asterisk next to the results of the opening round in Melbourne as the world champions appeal Daniel Ricciardo exclusion from second.

While the greater focus on fuel conservation, with each driver limited to just 100kg of fuel per race, has drawn criticism from some who believe it is having a direct impact on the drivers ability to race.

Indeed leading that criticism of the new fuel-efficient era is Ferrari's Di Montezemolo who recently told Italy's authoritative Autosprint publication: "I don't like his sort of taxi-cab driving," he said.

"What I don't like is this complexity in the interpretation of the race, both from the drivers' and the spectators' point of view."

The Italian found some sympathy from his long-time associate Ecclestone who has been one of the big voices leading the debate over the level of volume the new V6 power units produce.

Though the actual limit of 100kg per race has not been an issue for any of the teams with no cars failing to finish because of over-consumption of fuel, the lack of variety in strategies seen in the races, which was supposed to be such a key part of the new style F1, is what has ruffled the feathers of these leading figures more than anything else.

After their meeting in London, Ecclestone and Di Montezemolo will now meet with FIA President Jean Todt on the sidelines of this weekend's Bahrain Grand Prix.

Both parties are hoping for what Autosport dubbed 'blue-sky thinking' in a bid to improve the action on track while also recognising the sport should continue down the path of 'greener' more sustainable hybrid power units such as those we have now.

Some may suggest this sudden need for changes being led by the Ferrari President could be in response to his team again not producing a car on the leading pace, however, the concerns raised have been mentioned by Ferrari even before the season began.

Team Principal Stefano Domenicali admitted his own concerns on what he thought could become fuel-dominated races as drivers concentrate on saving fuel rather than racing, however, McLaren Group CEO Ron Dennis believes the current rules should be given more time to settle.

"I think there are always going to be people who have negative observations. That is inevitable," he added.

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