George Russell has expressed surprise at the impressive performance shown by Formula 1’s new engine manufacturers during pre-season testing in Barcelona. The Mercedes driver observed that several competitors made significant strides with their new power units, defying initial expectations that new entrants would struggle in their debut season. Russell’s comments highlight what could become a major storyline as the 2025 campaign unfolds, with traditional power unit hierarchies potentially facing disruption from fresh technical approaches and partnerships that emerged during the winter break.
New engine regulations shake up competitive order
The 2025 season marks the first significant overhaul of Formula 1’s power unit regulations in twelve years, opening the door for new manufacturers to enter the sport. This technical reset has attracted Audi as a completely new entity, brought Ford into partnership with Red Bull’s in-house power unit division, and facilitated Honda’s return alongside Aston Martin. The regulatory changes were designed to make engine development more accessible and sustainable, reducing barriers to entry that had previously kept potential manufacturers away from the championship.
Many paddock observers anticipated that these new power unit suppliers would require considerable time to match the established performance levels of Mercedes, Ferrari and Renault. Historical precedent suggested that entering Formula 1’s hybrid era with a competitive engine requires years of development and track time to refine the complex interaction between internal combustion engine, energy recovery systems and battery management. However, the opening test sessions revealed a different narrative taking shape.
Russell acknowledges competitors’ engineering achievements
Speaking to Formula 1’s official media channels, Russell offered candid assessment of what he witnessed during testing. “In terms of the power unit, there are some impressive things from some of our competitors and that is honestly quite surprising,” the British driver stated. “So well done to them.” His comments carry particular weight given Mercedes’ own pedigree as a power unit manufacturer that dominated the early hybrid era from 2014 onwards.
The four-time race winner emphasized that definitive conclusions remain premature given the limited running completed so far. “It’s obviously three days in a season of 24 races, so you don’t want to read too much into that,” Russell continued. “But I think a lot of people expected the new engine suppliers to struggle and such, and they’ve also had a good test. So that’s good for them, but for us time will tell.”
His measured response reflects the uncertainty inherent in pre-season testing, where fuel loads, engine modes and development programmes remain closely guarded secrets. Teams routinely run different programmes that make direct performance comparisons difficult until competitive sessions begin in earnest.
Red Bull-Ford shows promising reliability and pace
Among the new power unit entrants, the Red Bull Powertrains collaboration with Ford has generated particular interest. The partnership represents Red Bull’s bold decision to develop their own engines after Honda’s initial departure from the sport, subsequently bringing Ford onboard as technical partner and branding presence. Early indications from Barcelona suggest this ambitious project has avoided the teething problems that typically plague new engine programmes.
The RB21 chassis completed extensive running without significant technical interruptions, allowing both Max Verstappen and Liam Lawson to accumulate valuable data across various fuel loads and setup configurations. Sources in the paddock noted that Red Bull’s power unit appeared competitive on both single-lap pace and longer runs, suggesting the integration between chassis and engine has progressed smoothly during the winter development period.
While Audi encountered some reliability concerns with their Kick Sauber entry, the Swiss-based team’s struggles appeared less severe than anticipated for a manufacturer entering Formula 1’s notoriously complex hybrid regulations. The German manufacturer’s engineers worked through their issues systematically, demonstrating the methodical approach expected from a company with Audi’s engineering resources and motorsport heritage.
Mercedes completes trouble-free testing programme
Russell’s observations about rival progress came alongside positive feedback regarding Mercedes’ own W16 challenger. The team completed 2,325 kilometers across three days of running, encountering virtually no reliability issues that would disrupt their planned programme. This flawless execution allowed Mercedes to conclude their Barcelona test early on Thursday, confident they had gathered sufficient data.
“The car is working well so far,” Russell explained. “But it’s not about how well it’s working, it’s about how fast it goes around the circuit and we don’t have any indication of that at the moment.” His cautious assessment reflects Mercedes’ determination to avoid premature optimism after seasons spent chasing Red Bull Racing and more recently McLaren in the competitive order.
One encouraging sign for Mercedes involves the absence of porpoising, the aerodynamic phenomenon that plagued teams during recent seasons and caused significant physical discomfort for drivers. “The car feels nice to drive,” Russell noted. “No major issues, no porpoising – which is quite good news for all of us, it’ll save us a few years of back pain, so all in all a couple of decent days.”
Championship implications remain unclear before Bahrain
The Mercedes driver emphasized that substantial development work lies ahead before teams arrive in Bahrain for the final pre-season test and season opener. “We’re in a reasonable place, but I’m sure a lot will change between now and the next test in Bahrain and then people will certainly bring upgrades to the car, so it’s still very, very early,” Russell concluded.
His comments underscore the fluid nature of early-season development, where teams continue refining their packages based on initial track data and wind tunnel correlation work. The Bahrain test will provide more representative conditions given the venue also hosts the opening race, allowing teams to validate their performance in circumstances that more closely mirror competitive running.
The strong showing from new engine manufacturers adds intrigue to a season already featuring Lewis Hamilton‘s blockbuster move to Ferrari and significant driver changes across the grid. If Red Bull-Ford and Audi can maintain competitive power unit performance throughout the demanding race calendar, the established order could face unexpected challenges from quarters previously dismissed as requiring extended development time to reach the sharp end of the field.
