It was plain sailing until the first trip across the pond for Mercedes in 2014. 6 races down, 6 Mercedes wins.
Then disaster struck in Montreal.
Following a round of pit stops, Felipe Massa was temporarily leading the race whilst Hamilton and Rosberg squabbled over second place. Having passed the German, Lewis then ran into brake trouble, which forced him to retire.
Mercedes battled on with Rosberg, but the same design flaw struck the second Mercedes and gifting the Red Bull driver, Daniel Ricciardo his maiden F1 race win.
Mercedes played fast and loose with their race strategy today. They were almost caught out by Ferrari who split the strategy of their drivers with Kimi running the prime tyre on the second stint.
Yet behind the scenes bigger troubles than a strange race strategy were looming. The Mercedes brake problem was about to rear its head again.
Both Rosberg and Hamilton had brake problems. Lauda said Rosberg’s brakes started giving him trouble early on in the race and this led to a charging Räikkönen passing him with less than two laps to go. Hamilton too lost his brakes with 1 lap to go, but managed to hold off the Ferrari of Räikkönen.
Ferrari will be looking forward to the next race in Barcelona with the long turn 3 and high temperatures and with 6 weeks until the 2015 Canadian GP, Mercedes have work to do around the whole design and implementation of the highly complex braking and harvesting mechanisms.