It's "too soon" to say Sebastian Vettel has run away with the 2011 title.
"What should you do when the gap is 99 points? When it no longer depends on you, there is no choice but to go race by race," the Spaniard is quoted by El Mundo newspaper.
"I did wonder how much was due to the street circuit so I think at Silverstone we will see things clearer.
"Will Vettel be champion? That kind of talk is premature. He is three race wins ahead of Button so it's clear that his dominance is overwhelming.
"At other times they've experienced difficult situations. I don't think Ferrari will give up. We must continue to develop. They are not champions yet, and to see them as such would be a mistake," added Gene.