Sports Mole rounds up all of the latest news regarding Formula 1 on Saturday, October 26.

Saturday morning's headlines:

Abiteboul admits Renault could quit F1
An even darker cloud has moved above Renault's future in Formula 1. Read more.

Green issue is 'biggest threat' to F1 - Magnussen
Kevin Magnussen thinks environmental concerns are the "biggest threat" to Formula 1. Read more.

Wehrlein plays down F1 return rumours
Pascal Wehrlein is not getting too excited about the prospect of a return to Formula 1. Read more.

Zandvoort granted permit for Dutch GP upgrade
Crucial upgrade works at Zandvoort to prepare for the 2020 Dutch GP can go ahead for now. Read more.

Pirelli criticises F1 over new tyre wear graphic
Pirelli boss Mario Isola has hit out at a new on-screen graphic debuted recently by Formula 1. Read more.

Renault slams Racing Point over brake bias protest
Cyril Abiteboul has slammed rival team Racing Point over the recent protest about Renault's now-banned brake bias adjustment system. Read more.

Ferrari power advantage 'amazing' - Verstappen
Ferrari's advantage in Mexico is "massive", thanks to "amazing" engine horsepower. Read more.

Vettel fastest in second practice at Mexican GP
The Briton could clinch a sixth world title this weekend. Read more.

Hamilton's trusted race engineer to be absent for next two races
The Briton is on the brink of clinching the drivers' title for a sixth time. Read more.

Toto Wolff: 'Racist abuse as a child scarred Lewis Hamilton for life'
The five-times world champion broke down racial barriers as a junior karter en route to the summit of Formula One. Read more.