Kate Walker questions whether now is the right time to be looking at a potential change to wheel sizes, which has a bigger impact on car design than you might think...
Tyre company Kumho has apparently conducted a test using rubber that meets F1 specifications, although it is initially destined for another series on the single-seater ladder.
Pirelli has selected the medium and soft compounds to bring to India this weekend, with the company saying that this should prove the best combination to encourage close racing.
After being tested by teams at last week's Young Driver Test at Silverstone, Pirelli's new specification will make their race debut this weekend at the Hungaroring.
Pirelli has said that it will be looking closely at the dramatic tyre failures that occurred at the British Grand Prix, but will have some explaining to do after being summoned to meet the FIA Sporting Committee.
Having seen Mercedes escape lightly from the FIA Tribunal, are two of the German marque's biggest rivals considering running the same private testing gauntlet?