In 2020, teams were restricted to 65 runs per week but that has been cut to maximum of 40 runs per week in 2021.į1 Grand Prix of Bahrain - PracticeCarlos Sainz during practice ahead of the F1 Grand Prix of Bahrain Using last year’s table as an example, Williams, who ended further down, will get more time dedicated to CFD and FEA work than Mercedes who finished further up. This means that teams which finished lower down the championship table in 2020 will be given more hours for aerodynamic development and windtunnel runs that the team that finished at the top end of the standings. This year, aerodynamic testing regulations (ATR) will be permitted on a performance-related, sliding scale basis. Teams that exceed the budget cap could have points docked, a race ban or in severe cases, be disqualified. That baseline will be reduced again to $140 million next year and to $135 million in 2023. Possibly the biggest change is the introduction of a budget cap in 2021, which will mean teams are limited to spending a maximum of $145 million per year (21 races) – although in practice, this will end up being $147.4 million, with teams afforded an extra $1.2m for each additional race. The diffuser fences that were previously further inboard will be limited to the step plane will also be modified, they will be reduced in length by 50mm. Formula 1 MaDiffuser fences cut by 50mm The top winglets meanwhile will remain at 120mm. Rear brake duct winglets shortenedĪnother minor design change implemented to limit downforce by a further 4-5% involves making the rear brake duct winglets 40mm to 80mm narrower. It is hoped that the move will also make cars safer.

One of the changes approved by the FIA World Motor Sport Council back in May last year involved alterations to the shape of car floors which will need to be clipped to c ut downforce, or negative lift, effectively reducing aerodynamic performance on F1 cars by about 10% The FIA state that the whole floor must now be solid, with triangular cutaways at their rear, reducing the downforce-generating surface area on cars further. The modifications to the FIA rule book affect financial, technical and sporting regulations. There have been a number of small but significant changes have been introduced for the 2021 F1 season with bigger changes to the regulations, including amendments affecting car design set back until next year.

2018 f1 car changes