Mercedes has turned Singapore into a direct comparison test, with George Russell reverting to the previous car specification while Kimi Antonelli keeps the updated package for the three-day weekend. The decision comes after Russell's late retirement in Malaysia triggered a power unit grid penalty, and he said the swap was effectively a no-brainer once that happened.
The team introduced updates last weekend in Malaysia, but the evidence there was never fully conclusive. Antonelli finished second, while Russell had been on course for the podium before his retirement. Rather than simply carry the same direction into Singapore, Mercedes will now run two different configurations on its two W17s and use the event as a back-to-back comparison.
Russell: the decision was already close before Malaysia
Russell explained on Thursday in Singapore that he had started the conversation before Sunday’s race. He said: “I instigated the conversation prior to the race on Sunday.”
He added that the situation became even clearer after the failure in Malaysia: “So when the failure happened, it was kind of a no-brainer, because we were kind of 50-50 about it pre-race. And I was more in favour to do it, and that was even pre-race. Whereas now it is a total no-brainer.”
For Mercedes, that makes this weekend more than a routine race. It is a chance to judge the update package across all three days of the event, rather than relying on a single sample in very different conditions.
Why Singapore is being used as the test
Russell said the team needed a proper answer on whether the upgrade was helping, rather than assuming the Malaysia result told the full story. He said: “I think for any team, it's always very important” and added that “there's no signs telling us the upgrade was not working”.
His point was that variation between weekends can be extreme. As he put it: “So those fluctuations, even with a consistent car and your rivals with the same car, are drastic.”
That is why Mercedes has chosen this approach now. Russell said: “So this engine penalty this weekend has just given a good opportunity to roll back.” In practical terms, that means the team can compare the previous version against the updated one with George Russell and Kimi Antonelli on different specifications.
Antonelli keeps the update package
Antonelli will remain on the newer version of the car and will also use a new front wing. He said the numbers from Malaysia should be treated carefully because the conditions were unusual. “Of course, the numbers are a different story in Sepang,” he said.
He also pointed to the surface and climate in Malaysia as reasons the comparison may not have been representative. “Actually, in some corners we were missing tarmac, and also it was so hot,” Antonelli said.
That is the key to Mercedes' thinking. The team felt the Malaysia test was inconclusive, and Singapore now gives it a rare chance to compare two aero packages directly over three days. For Russell, the grid penalty has created the opening to roll back. For Antonelli, it is a chance to keep the updated car and provide a clean reference for the team.
The broader verdict is simple: Mercedes is still gathering evidence on the new package, and Singapore should give it a much clearer answer than Malaysia did. With two W17s running different specifications, the team will hope the split setup tells it which direction is worth taking next.
