what engine does mclaren use in f1

McLaren’s current Formula 1 cars use a Mercedes-AMG 1.6‑liter V6 turbo-hybrid power unit supplied by Mercedes-Benz.

Quick Scoop: What engine does McLaren use in F1?

For the most recent seasons up to and including the 2025 regulations, McLaren runs customer power units from Mercedes‑Benz, often referred to as Mercedes- AMG F1 engines. These are 1.6‑liter V6 turbo-hybrid units with an MGU‑H and MGU‑K, built to the standard modern F1 hybrid spec and tightly controlled by FIA regulations.

In simple terms, McLaren does not build its own F1 engines today; instead, it buys the full hybrid power unit package from Mercedes and integrates it into its own chassis and aerodynamics concept. That’s why you’ll often hear the McLaren described as “McLaren–Mercedes” in official listings and broadcasts.

A bit of context and history

Over its F1 history, McLaren has cycled through several engine partners (Ford- Cosworth, TAG‑Porsche, Honda, Mercedes, Renault, then back to Mercedes again). The current Mercedes deal re‑established a partnership that previously delivered multiple championships in the late 1990s and early 2000s.

Fans on forums often compare McLaren’s Mercedes power unit to Red Bull’s Honda‑branded unit and Ferrari’s in‑house engine, debating which has the edge in power and drivability. The consensus in recent seasons has been that the Mercedes engine is very competitive, but ultimate performance still depends heavily on chassis and aero, which explains why teams with the same engine can perform quite differently.

Why this matters for performance

• The Mercedes V6 hybrid is known for strong reliability and efficient energy deployment over a race distance.

• Because engine development is tightly frozen, gains for McLaren mostly come from aero upgrades, suspension, and tyre usage rather than raw engine power.

• When McLaren’s form swings up or down over a season, it’s usually more about car design and setup than a fundamental change in the engine itself.

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