Williams says engine decision imminent

Williams, currently using Toyota engines, was believed to be interested in a deal with Renault, but a possible agreement was delayed by the French squad's involvement in the race-fixing scandal.

Now the Grove team is still considering its options, but Williams has made it clear that, from a technical point of view, the decision must be made very soon.

"You've got to get on with it and make up our minds - it must be imminent," said Williams.

"It's a technical choice and it requires a thorough vetting and consideration period by Patrick [Head] and Sam [Michael] plus some negotiations by Adam [Parr] once it's decided.

"We have to hurry up because we don't want to get behind on designing our car."

When asked if people get excited at the idea of Williams-Renault, the team boss said: "Absolutely."

Williams also suggested Cosworth was still possibility.

"Cosworth is an independent company. The warmth that a manufacturer's engine provides is a useful feeling," he said.

Red Bull boss Christian Horner said his team, using Renault power units, was in a similar situation.

"We're in a situation where we need to get off the fence in the relatively near future, but nothing is fixed at this point in time," Horner said.