F1: Vettel says Mercedes feuds won't help RBR

Sebastian Vettel is under no illusions that the rivalry between Mercedes Formula 1 team-mates Nico Rosberg and Lewis Hamilton will help him in the fight for the title.

The feud between Hamilton and Rosberg made the headlines during the Monaco Grand Prix weekend, but the Briton insisted ahead of the Canadian GP that it was now all behind them. Even if Rosberg and Hamilton were to clash on track, Vettel thinks the German squad is so far ahead it would make little difference to anyone else's hopes.

"If they hit each other then it's good for us... They take points away from each other, but they are clever enough not to [collide], so you can't rely on that," said Vettel when asked if the Mercedes rivalry could help Red Bull. "And with that many races to go I don't think it makes a big difference if there is one race where they take each other out. At the moment they have quite a big lead.

"Maybe double points at the last race... who knows. We have to look after ourselves and go race by race and then soon enough you'll be kind enough to remind us where we are," added the world champion, who is 75 points behind championship leader Rosberg.

Vettel conceded it will be hard to close the gap to Mercedes, comparing the team's dominance to that of McLaren during the 1988 season, when Ayrton Senna and Alain Prost won all but one of the races.

"They have won every race since the start of the season, and whenever they had the chance they finished one-two," Vettel said. "I think since 1988 a team hasn't been that dominant.

"The gap is very big. It's not as if you can come up with a completely new car either because the regulations don't have that much room for new things. So we'll have to wait and see where we are here and then we'll go from there. We are doing our best, but the gap is very big to close."