Toto Wolff has revealed his alarm at the upturn in car performance for the likes of customers McLaren and Aston Martin in 2023, with his Mercedes team unable to make similar progress.
Coming off the back of a 2022 season in which they were able to claim a race victory and 17 podiums, Mercedes headed into 2023 hoping they could get closer to the dominant Red Bull team.
Despite managing to finish second in the constructors' championship as opposed to third, Mercedes didn't look like challenging for a race win the whole season, and only claimed eight podiums as Red Bull extended their advantage, and new competitors emerged.
"Aston Martin said that between the autumn car of 2022 and the start of 2023, [they found] two-and-a-half seconds," he told RacingNews365.
"They were pretty much last, and they were the second-quickest team at the beginning of the season. McLaren expected an upgrade of two-tenths and they got a second.
"The aero works completely differently, you have a ground effects car, which are aerodynamically more fragile, and on top of that, you put a tyre that you need to have exactly in the right window for it to perform.
"We're talking a few degrees up and down, and if you have a car that is predictable, that is stable, a good solid platform, you're struggling less in terms of sliding and degradation - it's a vicious circle."