Mercedes bid to bridge power gap at Canada GP

Hamilton seeks to extend his lead with a record-equalling seventh triumph at Canadian Grand Prix

Hamilton seeks to extend his lead with a record-equalling seventh triumph at Canadian Grand Prix

Under the regulations, each driver has three engines, turbos and MGU-Hs to last a whole season before incurring grid penalties and two MGU-Ks, energy stores and control electronics.

Valtteri Bottas insists Mercedes' last-minute decision to delay the introduction of a new spec power unit for this weekend is nothing more than a "small penalty" for the team's Canadian Grand Prix chances.

Mercedes engines are used not only by the factory race team, but also by the Force India and Williams teams. It is yet unclear if Ferrari are also planning an upgrade or if they will wait to introduce it at a later race. He has won before in Montreal, in 2013 with Red Bull, and was unlucky that a tactical error undid Ferrari's strategy with him in 2016.

The 2018 edition of the Canadian Grand Prix takes place on Sunday.

"We wanted to use the second power unit this weekend, but a quality problem means we've moved it to the French grand prix", a spokesman is quoted as saying by the German media.

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He later picked up a side strain after bowling just one over in England's campaign opener at the Champions Trophy in 2017. Surrey's Tom Curran - already in the squad to face Australia - has now been added to the group due to take on Scotland .

"If the others are bringing upgrades and have fresh engines we won't be in position to fight I don't think", he added.

The defending four-time champion, who leads nearest rival and fellow four-time champion Sebastian Vettel by 14 points after six races, claimed his maiden Formula One win at the Circuit Gilles Villeneuve in 2007.

And the race in Canada will have the same compounds that were used in Monaco - the supersoft, the ultrasoft and the hypersoft tires - when Mercedes struggled to bring it up to the optimum temperature and extract the maximum performance from the tires.

"We will need to make sure we get the most from all the tyre compounds, including the Hypersoft, if we want to come out on top this weekend", he said.

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