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Rivals say there will not be a rush to copy Mercedes' double DRS system despite Chinese Grand Prix win

Nico Rosberg leads in ChinaMercedes' rivals say they will not be rushed into adding 'double DRS' to their cars, despite Nico Rosberg's dominant victory in China showing how beneficial the system can be.

The advantage of the DRS-activated concept has been clear in qualifying, with Rosberg and team-mate Michael Schumacher battling for pole at all three races. But in China the team also delivered the race pace to capitalise on that single-lap speed.

With a protest against the system in China by Lotus having been rejected by the FIA, rivals must now decide if it is worth devoting resources to introduce their own designs.

Red Bull team principal Christian Horner said that although his team was looking at it, any introduction would depend on the amount of benefit it can bring.

"Ultimately there has been a lot said and a lot of fuss made about it," he explained. "They've optimised and capitalised on it and inevitably now we will pursue our own solutions.

"But I think first of all, like any component, it has to earn a place on the car as a package. It's not a given on everybody's car that it's a bolt-on laptime."

McLaren boss Martin Whitmarsh has suggested that there could yet be further technical rows about DRS designs as teams are now clear on what they can or cannot do.

"I think there will be a continued controversy over the DRS, but we have a range of development priorities and we will continue to bring performance to the race," he said.

"We are going to make sure that you don't chase the latest thing with a disproportionate amount of resource. It's certainly doing a good job for them [Mercedes]. But they weren't that slow in the race without the DRS, were they?"

Mercedes team principal Ross Brawn said he was happy that there were no doubts now over the legality of the system, and thinks that is good news for the sport too.

"It is good for everybody," he said. "I am sure there are teams who have been debating whether they want to do it or not, so it is good for everyone, good for the sport, and we want clarity.

"In many ways we welcomed the protest because we can stop all the debate and get the principles confirmed. We were reasonably confident but you are never sure.

"The other teams can now decide what they want to do. It is better for the sport that way."

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