Red Bull are reportedly planning to bring a significant upgrade package to the Spanish GP, with weight-saving among the main priorities.
It has been well documented that the RB18 is significantly overweight, with Helmut Marki highlighting this as a major weakness from pre-season.
According to racingnews365.com, Red Bull's upgrade package for the sixth round will aim to reduce the car's weight by 7kg.
F1's budget cap means that teams are now forced to combine weight-saving upgrades with aerodynamic ones, and so Red Bull will look to hit two birds with one stone.
Red Bull's mid-season development has always been impressive and their objective will be to continue their recent form.
The biggest thorn in Red Bull's side this year has been reliability, with both drivers suffering from a variety of issues to start the year.
Despite these issues, Red Bull are only six points behind Ferrari in the standings. Perez has taken an important step forwards from 2021 and with Verstappen continuing to perform at an elite level, Red Bull will look to prevent the unforced errors that have cost them early in 2022.
Changes to Red Bull's floor and diffuser are expected for Catalunya, whilst modifications to the rear wing should not be written off, with several teams having identified this as an area for improvement to start the year.