Fernando Alonso will start the Malaysian Grand Prix from the back of the grid this weekend as will run Honda's updated power unit, which will incur a 30-place grid penalty as he has already used the maximum allowed units this season.
Honda had looked at introducing a final upgrade of the season to use up its remaining three development tokens during one of the final five races, but keen to avoid a grid penalty at its home race in Japan, it brought the upgrade forward to Malaysia instead.
Alonso will trial the developments, which include a lighter engine block and new exhaust, on his McLaren during first practice on Friday.
He will get a new internal combustion engine, turbocharger, MGU-H, battery and control electronics, amounting to a 30-place grid drop, which will see him start last unless another driver takes a larger penalty.
Honda spent two tokens on the update, leaving it with one, which it likely won't spend before the season concludes.
