May 24 (GMM) Williams has played down reports it is in the market for a new engine supplier.

The British team, as well as F1 newcomer Lotus and the French hopeful ART, have all been linked with a supply of Renault engines for 2011.

It is rumoured that Williams is particularly unhappy with the performance degradation of Cosworth's 2010 engine.

But chief executive Adam Parr is quoted by motorsport-aktuell.com: "I am satisfied with them (Cosworth), we are not looking at other engines."

He added that Williams and Cosworth are working on how to maintain the performance of the engines as they accumulate more kilometres.

"This is definitely something on which they are working and where they have already made progress," confirmed technical director Sam Michael.

However, the Renault package looked particularly strong in Monaco recently, where the Red Bulls as well as the works car of Robert Kubica dominated qualifying and the famous street race.

"I think the Renault engine is very competitive," Sir Frank Williams noted in the Principality.

"It is a great engine, especially on this track," he added.

On the Grove based team's current Cosworth units, Williams added: "We would always like more horse power, but it's not a bad engine."

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