Williams still undecided on KERS debut

The Grove-based outfit is alone in choosing a flywheel KERS system, with all its rivals opting for battery technology.

And although there is great excitement about how Williams's technology compares to other KERS systems, the team says it still does not know when it will race with it for the first time.

Technical director Sam Michael said: "It's progressing well and we're trying to race it as soon as possible. We've got a couple of problems with it and we're just working through those problems.

"I'd love to be able to say when we are going to race it, but all I can do is say we've got about 10 people working on it flat out to bring it as soon as we can."

Although the season-opening Australian Grand Prix was won by a non-KERS car, Michael says there are no doubts that the technology does provide an advantage.

"It's a differentiator and if the other teams didn't have that then they wouldn't be in the top ten," he said. "The sooner we can get it the better."