While Mercedes has opted to delay the introduction of its new engine until France following the discovery of a "quality control" issue on the dyno at Brixworth, rival manufacturers Ferrari, Renault and Honda have seen their latest units brought into action.

All six Renault-powered drivers have taken on new ICE (internal combustion engines), as have the two Honda-powered Toro Rosso drivers and Sebastian Vettel.

With Raikkonen having run his second ICE of the year in Spain, the Finn does take on a new turbocharger this weekend, as do Vettel, the Red Bull duo, the Renault duo, Pierre Gasly and Stoffel Vandoorne.

Vettel takes on a new MGU-H also, as do the Bulls, the Renaults, McLaren and Gasly, while the Frenchman and Fernando Alonso are the only drivers to take new MGU-Ks.

Indeed, Gasly goes for the clean sweep, taking on a new energy store and control electrics, with Verstappen and the Renault duo also taking on new control electronics.

While all of these new units are within the rules, the Toro Rosso duo and Ricciardo are now on their third ICE, turbocharger and MGU-H, while Verstappen is on his third turbocharger and MGU-K.

Check out our Friday gallery from Montreal, here.