The Red Bull team does not fear straight lines as much as it did earlier in 2010, according to a German media report.

After dominating on the slow, corner-dominated Hungaroring in August, the RB6 was subsequently beaten to the flag at Spa and Monza; circuits punctuated by long stretches of asphalt.

Then, before he dominated at Suzuka, Sebastian Vettel said the Japanese layout was "designed for" the Adrian Newey-penned car, even though the Renault engine was not expected to be strong on the front straight and the long run between Spoon and the chicane.

Team consultant Helmut Marko has been vocally worried about F1's forthcoming trip to Korea, with the new layout featuring twistier sections separated by some very long straights.

After Mark Webber and the team pulled out leads in both world championships at Suzuka, the Austrian said "we need a cushion, especially for the next race".

"One of the three long straights (in Korea) is 1.2 kilometres long," Marko groaned.

According to Auto Motor und Sport, however, the RB6 is now performing better on the straights, thanks to the latest development of the car's F-duct.

The report said Newey has essentially aped the Renault team's F-duct solution, and as of Suzuka the RB6 is producing better straight line speed.

"We are no longer losing so much on the straights," confirmed Vettel.