The start of the 2017 F1 season has produced a few surprises in the eyes of 1997 world champion Jacques Villeneuve.
Ferrari's Sebastian Vettel has broken Mercedes three-year dominance by leading the championship after four races after collection two wins with the Scuderia.
"I admit to being surprised," Villeneuve told Italian blogger Leo Turrini.
But the French Canadian, who is now a television pundit for Italian television, also admitted to being surprised by Valtteri Bottas' Sochi win.
"I'm also cautious," said Villeneuve.
"Sochi is his favourite circuit and he won't be destroying Hamilton on every track like that. I also don't know if he's psychologically ready to fight for the championship."
The former Grand Prix driver offers a tepid view however on Red Bull Racing's chances of catching up with its rivals up ahead.
"They're too far back," he said.
"Maybe they can win a race or two if they're lucky, but with that car, I don't see them at the level of Ferrari and Mercedes.
"My favourite for the title is Vettel," said the 46-year-old. "Ferrari is doing a great job and Seb can handle the pressure."
Villeneuve also defended Ferrari's other driver, Kimi Raikkonen, even if some think the Finn is clearly Vettel's 'number 2'.
"Raikkonen is outstanding and much more than a number 2," he said. "It surprises me that people are so determined to not realise it.
"At most the difference between him and Vettel is one tenth per lap. He's also the perfect teammate who never creates tension with the team."
GALLERY: Formula 1's girls and girlfriends
Keep up to date with all the F1 news via Facebook and Twitter
