Mercedes and McLaren face off over gearbox design as the 2026 overhaul restores the component’s importance. Both teams use the same power unit, yet McLaren builds its own gearbox and opts for shorter gear ratios. The choice boosts launch speed and early acceleration, giving the Woking outlet initial advantages in several early races during the season so far.

Mercedes favors longer lower gears, keeping the engine revs higher through slow corners and maximizing battery recharge. McLaren’s tighter ratios multiply torque at the wheels, improving starts and short‑straight performance. Data from the first five Grands Prix show McLaren routinely out‑launches Mercedes, yet the longer straights of circuits like Miami expose the trade‑off in this season to understand the balance.

Regulation changes allow a single gearbox change per season, but McLaren’s chief Andrea Stella says the current setup delivers more overall benefit. The team remains content, weighing the advantages of stronger acceleration against the slower top speed on long straights. As the season progresses, the gearbox debate will continue to shape race outcomes for teams and drivers alike in every race.