What happened: World Championship leader Kimi Antonelli expressed concerns over the recent Mercedes upgrade package following Sprint Qualifying at the Singapore Grand Prix. He called the car very difficult and unpredictable to drive with the new aerodynamic components.

Why it matters: The team is running a split-spec strategy across its cars to evaluate the latest updates. Mercedes has struggled to understand why the recent upgrades have not delivered the expected performance gains.

What to watch: The team will evaluate the data to find answers for the performance deficit, with a new front wing also arriving for the race.