15:38 – Kimi Räikkönen has backed the initial changes made by Formula 1’s new owner, Liberty Media, but reckons it will take “a few years” to judge its impact on the sport.

Liberty, which arrived on the scene towards the end of 2016, completed its purchase of Formula 1 in January, and has spent the year understanding how the sport operates.

Chase Carey replaced Bernie Ecclestone as CEO, with ex-Formula 1 team boss Ross Brawn handed a key sporting role, and Sean Bratches taking control of the commercial side.

Several new initiatives were trialled, including expanded fan zones at selected races, the first ‘F1 Live’ demo in London and a star-studded pre-race show at the United States Grand Prix.

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