Aston Martin took advantage of the regulations to upgrade its rear-suspension to that of last year's Mercedes without the need to spend either of its tokens.
Technical director Andrew Green revealed the chassis had been developed with the tokens, but would not give information on why the changes had been made.
Alpine
The newly rebranded Alpine team used common sense in its quest to top the midfield battle this season.
The token spend went towards the rear of the A521, with executive director Marcin Budkowski explaining: "A lot of changes at the rear of the car, this is where we focused our attention because that’s where the regulations have impacted it."
Ferrari is in need of a bounce-back season after a torrid 2020 campaign, so to couple a new power unit, the Scuderia has focused on other elements of the rear of the car including the suspension.
A new transmission is also integrated to run with the new engine.
AlphaTauri
The Faenza-based outfit was more than happy with its AT01 challenger last year, with technical director Jody Egginton claiming the "chassis and power unit provides a good baseline".
Therefore, focus was placed on the front of the car, with the nose and suspension structure.
With targets set on the new regulations being introduced next season, Haas has refrained from using either of its development tokens, with team principal Guenther Steiner citing the campaign as a "transitional season".
One token had already been spent by the team in 2020, leaving Williams somewhat snookered over the winter.
"We spent one of our tokens last year and I’m not going to divulge where we spent it because we spent one last year and that left us with only one over," team principal Simon Roberts said.
However, with Roberts suggesting the single token was insufficient to develop the "nose or any of the structures", it is more than likely the token was used to upgrade something rearward of the car.