Mercedes boss Toto Wolff has admitted that the Canadian Grand Prix last weekend proved to be a "major wake-up call" for the Silver Arrows as they expected to turn up in Montreal being competitive, only for Sebastian Vettel to ease to victory from pole to flag.
The Circuit Giles Villeneuve has been a location of success for Mercedes in recent years as they had won the last three Grand Prix races until the 2018 edition on Sunday.
However, Ferrari and Red Bull went ahead with their scheduled engine change before the race, while Mercedes' was postponed due to technical reasons. Lewis Hamilton barely made an impact on proceedings and finished fifth, and although Valtteri Bottas did better to finish second, he never posed a threat to Vettel in P1.
Wolff says the whole team have been jolted by the performance in Canada.
"A major wake-up call for every single member of the team," the Mercedes boss said of the Canadian GP.
"We came to Montreal expecting our car to be really strong. And we are leaving seeing we haven't been where we thought we should be.
"You can't come to Montreal and think it's going to be a walk in the park, because that's the kind of wake-up call you get.
GPFans is a multi-platform, multi-language brand dedicated to Formula One coverage. We bring you all the ins and outs of the sport, 24/7, everything from up-to-the-minute news and features to the latest viral stories and clips.
We believe that a new generation of exciting, outspoken drivers will make F1 more popular than ever before, and we want to give our users access to as much of their heroes as possible, on and off the track. From Lewis Hamilton to Max Verstappen, Daniel Ricciardo to Sebastian Vettel, we provide in-depth analysis of every every Grand Prix in the season, from Australia to Abu Dhabi.
With Formula One under the new ownership of Liberty Media, how the sport is being covered is evolving, and GPFans will look to be at the heart of this progression into new media, as one of the fastest-growing sites covering the king of motorsports.