Oct.5 (GMM) Sebastian Vettel has tipped Sauber as a real dark horse at this weekend's Japanese Grand Prix.

The reigning world champion won last time out in Singapore with his Red Bull, but he admits that the Ferrari-powered C31 should be a standout performer in Japan.

Sebastian Vettel, Red Bull Racing
Sebastian Vettel, Red Bull Racing

Photo by: xpb.cc

"I believe Sauber will do very well this weekend," Vettel is quoted by Brazil's Totalrace.

"They have a really great car with a lot of downforce."

Sauber's drivers agree.

"Definitely our car could be competitive here," said local driver Kamui Kobayashi in Japan.

"After Singapore, which is a little bit of a difficult circuit for us, Suzuka is our best track (so) I think it will be great."

Sergio Perez, who has finished on the podium three times in 2012 so far, told reporters: "I'm looking forward a lot to fight for the victory here.

"I think we've got a very strong car at this circuit."