“I think in 2022 there were more issues with the car that than first met the eye,” he says. “And everything was dominated by bouncing, and we couldn’t unpick what was bouncing and what were poor characteristics within the car. So it took a good 18 months to solve bouncing.
“Then we recognised we had a bit of a problem with the suspension. We changed the suspension. Then that caused the balance problem. And these things, it does just take time. And I think when something clicks and something works, you sometimes also don’t know quite why that is.
“We went to Vegas last year and dominated. I’d love to tell you exactly why that is. We’ve got some ideas why that could be, but there’s not like a silver bullet saying that is the reason why we were so strong there, and that is the reason we were so weak elsewhere. And I think that’s the case with everyone.
“And even McLaren, prime example, I don’t think even they believed they could find the performance that they did. It’s just all got to work together.
“So as I said, I’m more confident this year that with the work we’ve done on the sim, and we’ve got some really great simulator drivers who are putting in lots of effort. Kimi has been doing some really great work as well. I’m much more confident we’re not going to fall into a trap as we have done in the previous years.”
Development struggles left Hamilton and Russell to race each other for much of 2024 — far behind frontrunners
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Mercedes’ new approach
In effect Mercedes is taking a more holistic approach to how a change here or there impacts how the car subsequently performs on various types of track.
“I think the last couple of years, we’ve been so focused on solving the problem, we weren’t looking ahead to what future issues it would cause,” he admits. “It’s like you solve one thing, and then it creates a new problem. So with W16 we’ve been forward thinking much more than we have done in the past.
“And that’s quite normal in the world of aero, when you’re developing in the wind tunnel, but when you’re changing characteristics of the car and how it’s going to handle and how it’s going to feel for us driving it – if you make the front stronger, it’s going to take away from the rear.
“And if you go too far, that’s just as much as of a problem than if it’s in the opposite direction. So I think it’s really being thorough, saying ‘Right, these are the fundamental changes we’re going to make. We think it’s going to do X. Is that going to be a problem at these races? And if so, how are we going to drive around it?’”
Acid test in Bahrain
In that context getting off to a flying start at this week’s Bahrain testing will be crucial for the team, especially as the need to switch focus to 2026 will be a priority for everyone – there simply isn’t the R&D capacity to do any major firefighting and revamp the W16 if it has teething troubles.
Russell continued to iron out Mercedes’ issues during post-season testing in Abu Dhabi last December
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“I think within five laps, you know if you’re in for a good season or not,” says Russell. “And we’ve known within the first five laps of the last couple of years that we wouldn’t be fighting for the championship, or at least we knew we wouldn’t be fighting at the beginning of the season. As I said, it’s been much more robust this season.