Britain's Lewis Hamilton has said that Red Bull Racing's dominance won't last and that McLaren-Mercedes will catch up.
Hamilton took his first win of the F1 2010 season two weeks ago in Turkey and he is now third in the drivers' championship - four points behind his team-mate, Jenson Button and nine behind current leader, Mark Webber.
"Red Bull are still the guys we want to chase and beat," Hamilton told British newspaper, The Sun
ahead of this weekend's Canadian Grand Prix in Montreal. "They've got the fastest car, not the best but the fastest at the moment - and that will soon change.
"I'm back in the championship [after my win in Istanbul] but that's the way it is with these new championship points. By no means am I whooping and cheering though.
"I've a lot of work to do and the only time I'll be really smiling will be at the end of the season if I'm in front.
"For the last few races I've felt I've a really good shot at the championship. I've just been waiting for the right opportunity to come along, which it did in Turkey and I grabbed it with both hands.
"The car was good, I had one of my best qualifying performances and in the race I was on the tail of the Red Bulls giving them hell all the way [when they crashed into each other 18 laps from the chequered flag]."
Montreal meanwhile is a special place for Hamilton as he took his first F1 victory at the Circuit Gilles Villeneuve back in 2007.
"My [first] win seems like such a long time ago. To return for 2010 though is great because it's such a fast, demanding and unforgiving circuit - I love racing here," he added.
"There is real danger for the driver there however. This is one of the older type of circuits which challenges the skills of every one of us. There is not a lot of room for error because of the walls being so close, but I love the challenge of racing here. It is a great thrill."