ROME, Oct 24, 2007 (AFP) - Newly crowned world champion Kimi Raikkonen and his teammate Felipe Massa are in a league of their own, Ferrari chief Luca di Montezemolo boasted on Wednesday.

"With all the respect that I have for the others I wouldn´t swop my drivers for anyone," the Scuderia boss said at Ferrari headquarters in Maranello.

Di Montezemolo praised the duo´s peformances in what was a dramatic and draining campaign which saw Raikkonen start well, then go through a slump before coming back strongly to claim the title.

He said: "Raikkonen arrived here (replacing Michael Schumacher), he won the first race and then he captured the world title.

"I don´t know what more I could ask of him.

"As for the younger Massa, he had more pole positions than anyone else, he is strong and loyal and it´s not insignificant that I personally took the decision to renew his contract up to 2010."