Ecclestone says Sebastian Vettel will only get stronger

Although Vettel has dominated this year's world championship, and is set to clinch the title in the next race in Japan, Ecclestone thinks the German still has room for improvement.

In an interview between the sport's commercial rights holder and Red Bull Racing team principal Christian Horner on the official F1 website, Ecclestone said: "There is no end in sight to that curve. There is still a lot to come from him."

He added: "Sebastian has an absolute will to succeed but has stayed very grounded. No win, however big, will stop him being grounded. That is immensely important in this business. Seb is relaxed and will always remain true to himself - that is why things come easy."

Ecclestone also believes that one of the key factors in Vettel's success is the fact that the staff at Red Bull Racing have such a hunger to keep on winning.

"With Adrian Newey they obviously have a design whiz, but it also has something to do with the mentality of the whole team," he said. "Everybody there desperately wants to win - and win more. They are true to the motto 'show me a happy loser and I'll show you a loser'."

Ecclestone also laughed off suggestions that Vettel should follow his dream and make a move to Ferrari in the future.

"Well, seeing the situation as it is now it would be an appropriate means to slow him down..." he said.