Mercedes was the engine supplier paired with McLaren on Norris’s 2026 team listing.
McLaren’s 2026 Formula 1 entry used Mercedes power units, making the team a Mercedes customer rather than a works Mercedes team. The pairing continued a long-running technical relationship that resumed in 2021 after McLaren’s Renault period and the team’s Honda partnership.
The engine connection was especially relevant to Norris’s Belgian Grand Prix penalty. McLaren fitted a new power-electronics unit to his car after reliability problems and exceeded the permitted allocation for that component. Because the extra element triggered a sporting sanction, Norris took a 10-place grid drop at Spa.
This answer is sometimes confused with Renault or Honda because both supplied McLaren in recent Formula 1 eras. Ferrari is also a major engine supplier, but McLaren was not Ferrari-powered in 2026. Mercedes supplied the power unit while McLaren designed and built its own chassis and competed under its own team identity.