Why Splitting Car Specifications Is a ‘no-brainer’ for Mercedes at Singapore Grand Prix

Mercedes Splits Aerodynamic Setups for Singapore Sprint Weekend

Mercedes has committed to an unconventional technical strategy for the Singapore Grand Prix, opting to field its two W17 challengers with completely different aerodynamic configurations. Amid the high-pressure environment of a Sprint weekend, the Brackley-based squad will use the event to conduct a definitive back-to-back comparison. Kimi Antonelli will continue running the upgrade package that debuted at Sepang, while George Russell will revert to the older aerodynamic iteration across all three days of track action.

The tactical divide comes after the upgrades introduced in Malaysia yielded inconclusive technical data. Although Antonelli secured second place and Russell was on track for a podium finish prior to an engine failure, the team concluded that the modifications failed to deliver the anticipated lap-time performance gains. Russell had suggested running a split configuration even before the race in Sepang, but his late-race breakdown and subsequent power unit grid penalty made the choice straightforward.

I instigated the conversation prior to the race on Sunday, Russell explained during Thursday’s media session in Singapore. 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.

Russell Evaluates Circuit Fluctuations and Setup Reversion

Accepting the potential competitive compromises of running older parts, Russell emphasized that the broader objective is to eliminate ambiguity surrounding the technical direction of the car. He pointed out that performance swings across the season have frequently masked the true efficacy of technical parts depending on track conditions.

I think for any team, it’s always very important, Russell stated. However, there’s no signs telling us the upgrade was not working, and we know the car we had in Baku was the same car as we had in Budapest and Zandvoort, and in Baku we were on pole by eight-tenths, and in Budapest, we were four-tenths off the pace.

So those fluctuations, even with a consistent car and your rivals with the same car, are drastic. You have a fluctuation plus or minus one second, it can be, that delta. So we’re pretty confident it’s Malaysia specific, Russell added. When you look at the pace of Red Bull as well, they clearly over performed compared to where they’ve been this season compared to all of the other teams, and actually, when you look at our pace compared to McLaren and Ferrari, it wasn’t too dissimilar. It wasn’t like massively out of bed. So this engine penalty this weekend has just given a good opportunity to roll back. It’s the car that I won in Baku with – so let’s see.

Antonelli Tests Complete Package with New Front Wing

While Russell steps back to the specification that took victory in Baku, Antonelli is set to receive a new front wing in Singapore, an addition designed to complete the full scope of the Sepang upgrade package. Antonelli noted that extreme heat and surface degradation during the previous round likely skewed their evaluation of the development kit.

Of course, the numbers are a different story in Sepang, Antonelli remarked. But I think Sepang, it was a bit of an outlier because the tarmac was just so rough. Actually, in some corners we were missing tarmac, and also it was so hot. We had at times 60-plus degree track temperatures, so I think was a bit of an outlier.

Antonelli believes the layout of the Marina Bay Street Circuit will present a more accurate assessment: And definitely I feel like this weekend is going to be a bit more representative. Cooler temperatures, the tarmac is in a much better state, and I think it’s going to be a very good test, because in Sepang we struggled a lot in low-speed, and here we have a lot of low-speed. So let’s see how it’s going to be. And plus, we’ll have two different cars on two different packages. So that is going to be interesting to see, we’re going to have a straight comparison on that side.

The Italian driver expressed confidence in the team’s engineering efforts, welcoming the challenge of validating the components rather than abandoning them outright.

Well, I didn’t really get to decide, Antonelli said. It was it was mainly the team that decided to go back on the old package. As I said before, we think it was it was an outlier, and we do believe the new package can work well. It’s just a matter of trying to put the car in the right window, and understand it more.

And this weekend, I think, is a good example. It’s going to be a good opportunity to see and to compare the two packages. And because we know the old one, we’ve known it for ages, we know how to set up the car around that package. We know it works really well, and is really fast in these kinds of tracks. And we really want to understand, Antonelli concluded. On the other hand, this new package and trying to really strike the maximum out of it, because the team has done a tremendous job. They’ve put in so much work on this new package, and it would be just a shame to write it off so early. So I feel like I’m quite comfortable on keeping it – and actually I really want to help the team out to understand it more, and as I said before try to extract the potential.

Why This Matters

Operating split aerodynamic specifications during an intensive Sprint weekend is a calculated gamble. With only a single practice session before competitive sessions begin, engineering teams usually prioritize optimization over experimentation. However, with modern ground-effect cars highly sensitive to setup windows and track characteristics, wind tunnel and CFD correlation can drift significantly from real-world tarmac performance. By leveraging Russell’s grid penalty to turn the race into an active laboratory, Mercedes gathers critical baseline data that will determine whether to refine or abandon their late-season aero roadmap.

Frequently Asked Questions

Why is George Russell reverting to the older Mercedes aerodynamic specification?
Following inconclusive data regarding the upgrades introduced in Sepang and an engine failure that triggered a power unit grid penalty for Singapore, Russell opted to roll back to the previous car specification to give the team a direct comparison without sacrificing an optimal starting position.

What is new on Kimi Antonelli’s car for the Singapore Grand Prix?
Antonelli will retain the aerodynamic parts introduced in Malaysia and will additionally run an updated front wing designed to complete the full upgrade package.

Why does Mercedes suspect the data from Sepang was unrepresentative?
Both drivers pointed out that Sepang featured track temperatures exceeding 60 degrees Celsius, rough and missing tarmac, and unusual competitor pace dynamics, making the venue an outlier for aerodynamic evaluation.