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Renault admits its 2011 car and exhaust a 'bold failure
Renault failed with radical design
Renault technical director James Allison has admitted that the unsuccessful forward exhaust concept has rendered the R31 a 'failed experiment'.

The system looked like it might have been a masterstroke when Renault produced strong times early in winter testing, but it never delivered the performance gains expected and ultimately limited the team's development ability this year.

"I regard it as a bold, but ultimately failed experiment," said Allison. "We were the only team to adopt a forward exhaust layout, and we did so with high hopes, buoyed by very strong wind tunnel numbers."

He admitted that even in the promising early tests Renault had actually been disappointed with the car.

"We came out of the blocks adequately well, although it was clear from the first test that the delivered downforce was not as high as we had expected," he said.

"The season which followed has been difficult for everyone at Enstone. The layout which had promised so much, and which, had it delivered, would have been almost impossible to copy, proved very tricky to develop and had a fundamental weakness in slow corners that has been an albatross around our neck all year.

"We look forward to moving on in 2012 with all-new exhaust rules and a chance to wipe the slate clean." More at Autosport.com

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