Toyota's Ralf Schumacher considers himself one of the top three drivers in Formula One and insists it is only a matter of time before Toyota wins the F1 title.

"I definitely count myself among the three strongest drivers in the world," Schumacher, 31, told Bild newspaper on Friday.

"Certainly [Fernando]Alonso and [Kimi] Raikkonen are fast, but I don't have any reason to hide behind anyone.

"If I weren't convinced of my abilities, I wouldn't be in Formula One."

Hoping to emerge from the shadows of his brother Michael after his retirement last year, Ralf said Toyota had improved with each season.

"Toyota is the team of the future," he said.

"The company and everyone working for it has one goal -- to lead Toyota to the top. The Formula One title is only a question of time."