Formula One is back in Europe for Round 11 and the Austrian Grand Prix at the Red Bull Ring, Spielberg. Mercedes’ George Russell was the big winner last time out in Canada — prompting questions over why he’s still waiting for his contract extension.

Ferrari appears to have made the most substantial changes for the Austria round, making revisions to the floor edge, fences and body, while also tweaking the diffuser to work in unison with the upgraded floor, which is the biggest aerodynamic performance differentiator on this generation of cars.

Red Bull team boss Christian Horner revealed what has changed in Formula 1 over his 20 years in the sport amid the sport's drama and controversies.