How many power unit components have drivers used so far in 2025?
Ahead of the fifth round of the 2025 F1 season that takes place at Jeddah, F1Technical's senior writer Balazs Szabo takes a look at how many power unit components drivers have used so far during the opening leg of the championship.
For the 12th year running, the 2025 F1 cars are powered by V6 hybrid turbo power units with 1.6-litre engines. This season represents the last year the current engine configuration appears before being replaced by a new power unit formula in 2026.
Current F1 power units feature seven elements: the internal combustion engine (ICE), motor generator unit-heat (MGU-H), motor generator unit-kinetic (MGU-K), turbocharger, energy store (ES), control electronics (CE) and exhaust.
Over the course of the 2024 season, a driver may use no more than four ICEs, MGU-Hs, MGU-Ks and turbochargers, two energy stores and control electronics, and eight of each of the four elements that make up a set of exhaust systems (comprising primaries left-hand side, primaries right-hand side, secondary LHS and secondary RHS).
Racing Bulls' Isack Hadjar Red Bull Racing drivers Max Verstappen and Yuki Tsunoda have already used two energy stores, control electronics and exhaust systems while Mercedes' George Russell has also used two ES and CE components which means that they will need to complete the season without any fresh units if they are to avoid any sporting penalties.
Haas driver Oliver Bearman has already added the second fresh internal combustion engine, turbocharger, MGU-H, MGU-K and exhaust system to his pool while Racing Bulls Liam Lawson has already started to use the second fresh unit of all seven components that make up the power unit.
Despite his improved form in recent races, Alpine's Jack Doohan finds himself in a difficult position in terms of power unit allocation as he has already started to use his second internal combustion engine, MGU-K, MGU-H, turbocharger while he has already added three exhaust systems to his pool.
