Despite being beaten by Ferrari in Hungary, Mercedes continues to dominate under the current regulations and is competitive at all circuits as it combines the best power unit with strong aerodynamics. Toro Rosso scored its best result of the season so far in Hungary as Max Verstappen finished fifth, leaving the team seventh in the constructors' championship.
Tost says the team's target of finishing fifth remains achievable and feels reliability has masked the true potential of the car's performance.
"It's true, the aerodynamics is working very well and in some of the high speed corners, it has been proved that the car is almost as good and sometimes even equal to the Mercedes," Tost said.
"During these first ten races we have unfortunately left quite a few points behind due to reliability issues. If it wasn't for this, we would definitely be further up in the Constructors' Championship, but we continue to work hard with our partners to improve this and come back stronger in the second half of the season.
"We are all very motivated because sooner or later the good results will come. Max 4th position in Hungary proves that we are working in the right direction. It's true that there have been mistakes on our side and there is certainly room for improvement in many areas."
Click here for a lighter look at some scenes from the Hungarian Grand Prix