TECHNICAL: Leclerc and Verstappen given further power unit components

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Today's Canadian Grand Prix will see Charles Leclerc race with a new energy store and control electronics which is his last unit of his allocation for the entire season. His championship rival Max Verstappen has received a new internal combustion engine which is already his third unit this season.

Power units

For the 11th year running, the 2024 F1 cars are powered by V6 hybrid turbo power units with 1.6-litre engines. This season represents the penultimate 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).

With the Circuit Gilles Villeneuve featuring long straights, several drivers elected to add new power unit components to their pool. The Red Bull pair of Max Verstappen and Sergio Perez, the Alpine duo of Esteban Ocon and Pierre Gasly, the RB drivers Yuki Tsunoda and Daniel Ricciardo, Mercedes racer Lewis Hamilton and Williams driver Alexander Albon received a new internal combustion engine for the Montreal round. It is the third ICE for all these drivers.

The same group of drivers have been given a fresh turbocharger, MGU-K and MGU-H for Round 9 of the season. Furthermore, all these eight drivers will complete today's Montreal race with a new exhaust system.

Four drivers - the Ferrari pair of Charles Leclerc and Carlos Sainz, Oscar Piastri and Valtteri Bottas - have received a new energy store which is their second of two units allowed for the season.

The Monegasque, the Spaniard and the Australian driver have been also given a new a new control electronics.

Gearbox units

Drivers are also limited in terms of how many restricted-number components (RNCs) they can use during a season. RNCs are components that make up the gearbox, split between the gearbox case and cassette, and the gearbox driveline, gear change components and auxiliary components.

As with their power units, drivers have a ‘pool’ of four gearboxes that can be swapped around during the season. Only when a driver exceeds their allocation of either of the above gearbox components do they receive a grid penalty.

The start of the Canadian Grand Prix weekend saw Lewis Hamilton and Esteban Ocon receive a fresh gearbox.

The Briton has used two gearboxes so far and with starting to use his third one, he still has two fresh units to see out the rest of the season. For the Frenchman, it is only his second gearbox which means that he will have three more gearboxes to complete the remainder of the year.