Felipe Nasr expects Sauber to be competitive at the Canadian Grand Prix but believes that the Swiss team needs to work on improving traction.
Nasr claimed ninth position in Monaco but experienced difficulties in getting tyres up to temperature, which exacerbated Sauber's weaknesses.
"I think this is one of the very few tracks that suits the characteristics of the car, especially with the long straights here, but one point we’ve been seeing is our traction is not that great compared to our competitors and in Montreal you have a lot of slow speed corners and exits so we’ve been working on that," he explained.
"We could not generate enough energy in front tyres as we lack downforce and we cannot produce enough energy in the car to make the tyres work, it made it super difficult in Monaco to extract the maximum from the tyres but here it should be a bit better – I need to drive it first but I should imagine by the way the track looks, the speed is much higher and we should be able to make the front tyres work."
Nasr also added that Sauber is unlikely to receive engine updates from Ferrari until later this summer.
"Ferrari is getting a new update on the engine but we are not getting it here," he said.
"Probably we will get it at Spa and for now we have the same spec as we have been using all year. I’m still using the same one as I was in Monaco."