Analysts: Mercedes W17 exploited loophole to boost power

Analysts concluded Mercedes’ W17 exploited a loophole in the technical rules to produce a superior power unit/hybrid this season.

That exploitation produced a straight-line and energy advantage over Ferrari, evident in Montreal qualifying and the Sprint.

Mercedes’ power advantage has provided a sustained on-track performance lead since the opening round in Australia.

Customer teams such as McLaren run Mercedes power units, which has spread the Mercedes power advantage across the field.

After the first set of upgrades in Miami, McLaren moved clearly ahead of Ferrari in outright performance, aided by Mercedes power-unit-related work.

F1Technical overlay and speed-trace comparisons showed George Russell consistently producing stronger exits and higher top speeds than Lewis Hamilton in Montreal qualifying.

George Russell set the pace in Canadian sprint qualifying with a lap of 1:12.965; Lewis Hamilton’s fastest lap in the session was 1:13.326, 0.361 seconds slower.

Russell topped out at 333 km/h on the flying lap while Hamilton topped out at 330 km/h; Russell reached 300 km/h 11 meters earlier than Hamilton.

Mercedes’ hybrid delivery gave Russell a 2–3 km/h advantage from Turns 5–7 and had built a cumulative 0.19-second lead by the Turn 8 braking point.

Russell’s superior exit traction produced a 0.12-second acceleration advantage.

Hamilton’s battery was depleted by the finish of his flying lap; his speed was 11 km/h lower than at lap start while Russell finished 1 km/h faster, extending Russell’s margin to 0.361 seconds.

F1Technical concluded Hamilton suffered electrical deployment fade and ran out of usable energy on the short run to the finish, which cost him over a tenth of a second compared with Russell.

Analyses highlighted a Ferrari power-unit and battery-efficiency deficit, with Ferrari cars arriving at the final corner with significantly less usable energy than McLaren and Mercedes.

That Ferrari energy deficit was estimated to contribute to about a 0.3-second race-pace gap to Mercedes.

Telemetry and sector analysis showed Hamilton (and Ferrari cars) were stronger through slow and medium-speed corners and carried higher apex speed through the first two chicanes and out of Turn 7, while Ferrari retained the edge in medium-speed corners and rotation.

Hamilton effectively had only one competitive late Q3 run while George Russell completed two late attempts, compounding Hamilton’s loss of a final opportunity.

Similar battery-depletion errors were visible in the Sprint shootout earlier, reinforcing the pattern across the weekend.

Commentators and analysts framed the revelations as focused on deployment and straight-line power differences rather than driver error, with the Sprint reinforcing Ferrari’s weaker race pace compared with McLaren and Mercedes.

Articles noted a wet-race forecast could reshuffle the order on race day and potentially narrow the observed performance gaps.