Red Bull drivers Sebastian Vettel and Mark Webber believe they can find more speed in the car despite leading the second practice session at the Japanese GP.
After Mercedes led in the morning it was Red Bull who moved to the front in the afternoon though on-track dramas may have dulled the picture somewhat.
Speaking after practice Vettel certainly believes there is more to come. "The car balance is decent, but I think we can still improve" he told reporters.
The German, who can take his fourth world title this weekend, believes the tyres will again play a major role in the race on Sunday.
"Looking after the tyres will be important here, especially during the race. The car works fine at the moment, but we need to make sure we set it up the right way".
But in Vettel's immediate future is qualifying tomorrow where a front row spot is crucial.
"It’s good to see we are up there today, but it’s not always so important; we need to step up our game for tomorrow, as Mercedes will be strong in qualifying." he added.
Mark Webber echoed Vettel's comments and agreed the Red Bull's will face stiff competition for pole position tomorrow.
"On one lap, it looks pretty tight with the Mercedes and with the Lotus’, but I haven’t had a close look at the times: it doesn’t look too bad. We've done a lot of laps today and will now work on tomorrow," he said.
"We have to find performance tonight, it's our job to make improvements each day and we have a job to do tonight to find some more tenths."
The Australian also spoke about the joy of driving a F1 around the Suzuka circuit.
"The track is a special one and in terms of difficulty, it’s right up there. We have to be very accurate and if you're not, then you get penalised."
Write for GiveMeSport! Sign-up to the GMS Writing Academy here: http://gms.to/130seMa