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With a 141-point lead at the top of the constructors' standings and with the drivers' championship a two-horse race between their drivers, Mercedes are the one team who don't need to improve their car.
But the 2014 pace-setters are going to do so anyway, with upgrades to both their car and their engine—which is used by the McLaren, Williams and Force India teams—set to be introduced for this weekend's Canadian Grand Prix in Montreal.
The team's executive director, Toto Wolff, is keen for the Silver Arrows to maintain the work rate that has led to Mercedes winning every race so far this season, telling James Galloway of Sky Sports:
We went into that [Monaco] race convinced that our rivals could outperform us and that's how we worked to prepare for the weekend: like we were the underdogs.
So we were pleased to see that we still had a good advantage at the front of the field. The team is operating at a very high level right now but we need to keep the ball flat, stay humble and keep pushing.
On paper, you might say that Canada is the kind of circuit that should suit our package. But we don't have a crystal ball and we have been bitten by that way of thinking in the past. We know that our rivals are getting closer and that we will need to extract every bit of potential to deliver a strong performance in Montreal.
Wolff's colleague, Paddy Lowe, has admitted that Mercedes' eagerness to improve their power unit is a consequence of the unusual engine failure experienced by the Williams of Valtteri Bottas in the latter stages of the Monaco Grand Prix.
In Montreal, we have a circuit at which Lewis has traditionally excelled and, with both him and Nico on top of their game, we're expecting them to push each other all the way through the weekend once more.
As always this will of course depend on the team providing a good package and equally strong reliability. We will be bringing a number of updates to the car, both on the power unit and aerodynamic side, so it should be an interesting weekend.
There were some concerns after Monaco following a retirement for Valtteri Bottas but the [Mercedes AMG High Performance Powertrains] team at Brixworth have been working extremely hard to understand that problem and ensure that it is contained across every engine. We are confident that this will be the case.