Despite appearing to have the edge in qualifying trim, Sebastian Vettel doubts Red Bull will dominant this weekend's Korean GP.
Vettel became arguably the favourite to win this year's Drivers' Championship title when he claimed his third victory of the season in Japan, moving to within four points of Fernando Alonso's lead.
However, it wasn't so much his victory as the form in which he achieved it with Vettel untouchable at Suzuka, which was his second win in two races.
Red Bull's form continued in Korea on Friday afternoon as the reigning World Champion set the pace in Practice Two, edging his team-mate Mark Webber by 0.032s. Third-placed Alonso was three-tenths back.
Vettel, though, insists Korea won't see a repeat of Suzuka as, for now at least, Red Bull's long distance pace is being challenged by their rivals.
"I think we can be quite happy," Vettel said. "It looks extremely tight.
"I'm not happy with every run we had today, the track was changing quite a lot this morning, so it was better than expected.
"This afternoon to start with it was quite slippery, but then I think it got a little better.
"All-in-all the car felt alright. Now we see what can we do for tomorrow. I think we have to improve ourselves to much the others."
Vettel Leads Red Bull 1-2 In Practice Two