"So far Fernando has proved to be fast immediately. Kimi needs some time to understand the car, but you can see he is getting there. I am sure from the drivers' side there will not be a problem," Domenicali said.
Domenicali admitted that Mercedes are the team to beat after shining in the pre-season and winning the opening races from Nico Rosberg and Lewis Hamilton.
"If Mercedes keeps the pace it will be very difficult to match them," he said.
Domenicali said that teams and engine manufacturers like Mercedes had an advantage after sweeping rule changes because they can draw on their wide range of technology and expertise in all areas.
But he said Ferrari are ready for the challenge and have invested big in development equipment they didn't have in the past.
"We need to work to have a more efficient car; we need to work to have a better engine; we need to work to exploit better the balance between electric power and traditional engine power. Everywhere!" he said.
-AAP