Wednesday's Formula 1 news roundup: Robert Doornbos, Lewis Hamilton, Mattia Binotto

Sports Mole rounds up all of the latest news regarding Formula 1 on Wednesday, September 25.

Wednesday morning's headlines:

Ferrari engine advantage 'exaggerated' - Binotto Mattia Binotto says Ferrari's three wins in a row were not all about engine power. Read more.

Stable rules best way to close F1 gaps - Perez Sergio Perez says the best way to close the gap in Formula 1 is for the regulations to be left alone. Read more.

Hamilton warns he could lose 2019 title Lewis Hamilton has warned Mercedes that he risks not winning the 2019 world championship. Read more.

Zandvoort happy with minister's support Dutch GP race organisers are happy to receive the support of the national government. Read more.

Briatore doubts Ferrari can win title Flavio Briatore doubts Ferrari can catch up with Mercedes for the 2019 title. Read more.

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Doornbos worried about Newey's F1 involvement

A former Red Bull driver has expressed concerns about the F1 team's technical future. Read more.

Hubert death investigation 'will take time' - Masi Michael Masi says he is unable to share much information about investigations into the crash that killed Formula 2 driver Anthoine Hubert. Read more.

Lewis Hamilton 'Championship is not won yet' Hamilton will head to Sochi for Sunday's Russian Grand Prix with a 96-point cushion over Charles Leclerc and Max Verstappen. Read more.

Singapore Grand Prix: Five things we learned Ferrari claimed a third race win in succession. Read more.