After a double-header in Europe, Toto and the team head to North America for the second time this season, to the legendary Circuit Gilles Villeneuve.
W15's development has been steady, but positive. Imola and Monaco both demonstrated the car is moving in the right direction, as Toto explains.
"We had an encouraging weekend in Monaco. We continue to make solid progress with our car, improving its overall balance and taking a step closer to those ahead," he said.
Gaps to the front have been coming down, from three quarters of a minute at the season-opener in Bahrain, to just under 15 seconds around the streets of Monaco, though the team's best Grand Prix finishing position to date remains P5.
"The progress is not yet showing in terms of positions, but if we continue to close the gap to the fastest cars, we know it will in due course," adds Toto.