Williams aims to have its 2012 car up and running for the first test of the official pre-season, technical director Mike Coughlan has revealed.
When Mercedes announced that its next single seater will only be ready for the second test - taking place two weeks after Jerez in early February - it triggered speculation other teams might tread a similar path.
But Ferrari and Red Bull have said they want to be ready for Jerez, and Oxfordshire based Williams has a similar plan.
"The car is slated to be delivered to the race shop in mid-January and we'll be ready to go to the first test in early February," Coughlan told Williams' magazine. He said one Renault-powered FW34 is already built "and we'll shortly start our FIA crash test programme".
We'll be ready to go to the first test in early February
Coughlan added that the car has already passed the FIA-standard tests "in private testing".
Williams finished the 2011 season in a lowly ninth place.