Sebastian Vettel was unable to highlight a single driver in particular who may challenge him next year, possibly preventing him from taking a third successive title.
The German, who wrapped up the 2011 title at the Japanese Grand Prix over a month ago, believes he will face tougher competition from not just one driver, but many.
“There is definitely not one driver I would highlight because we are living in a Formula One era where you don’t have one challenger but many – with different strengths and weaknesses,” he told the official F1 website.
“McLaren were very strong this year with both drivers – Jenson [Button] and Lewis [Hamilton],” though Vettel identified it had been a difficult year for Hamilton. “It probably wasn’t the easiest year for Lewis, but that doesn’t mean that this will also go for 2012.
“Fernando [Alonso] with Ferrari will definitely be there and I also have Mercedes on the list, with two great drivers. And never forget Mark [Webber]. So I will drop not one name, but many names. That’s my opinion.”