They also feature common safety cell structures, centrally designed in partnership with the FIA.

Other key features include:[3][4] The changes to aerodynamics remove expensive and commonly damaged parts such as the rear diffuser.

On the special stages it also provides a boost of up to 100 kW or 136 PS alongside the combustion engine and recuperates kinetic energy under braking.

The hybrid electric system adds an extra 84 kg to the cars gross weight and due to its 750 volts the cars will wear HY identification, with white letters on a red background, on the door panel.

[4][6][8][9][10] The use of hybrid power was discontinued in 2025 as teams felt that the cost of repairing damaged units was becoming too expensive.