(GMM) Jenson Button doubts other teams will be pushing too hard to rush a Mercedes-style 'double-DRS' to their 2012 package.
The F-duct-style concept is, so far, the highest profile innovation of the season.
So with the FIA declaring it fully legal, and Nico Rosberg breaking through with his maiden pole and win in Shanghai last weekend, it seems a no-brainer that the other teams will now be following suit.
But McLaren's Button doesn't think so.
"I really don't think it's giving them that much -- I think they're just quick," he is quoted by the BBC.
"From all our simulations, we don't think it's a massive margin at all. It's a great invention on their part, but our DRS system is very good so I don't think it's giving them much over us.
"Obviously nothing in the race and in qualifying it's minimal," said Button.
His teammate Lewis Hamilton thinks the fastest cars so far are the Mercedes, the McLaren and the Red Bull.
"The Mercedes I think is now the quickest -- particularly over one lap," said the 2008 world champion.
"Not sure they are quickest in race pace. I think the Red Bull is probably the quickest in race pace. We have shown we have good qualifying pace and race pace.
"We are there or thereabouts and we have as good an opportunity as anyone."
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