Frank Williams is confident that Williams can continue to make strides in Formula One following the introduction of the new FW38 car.
The British team finished third in the constructors' championship behind Mercedes and Ferrari after earning 257 points in the 2015 season.
Felipe Massa and Valtteri Bottas secured two podium finishes apiece last year as Williams finished 70 points better off than Red Bull.
Founder and team principal Williams is eyeing further progress in 2016, when Massa and Bottas get behind the wheel of the FW38 - which was unveiled on Friday.
He said: "Williams has started to cement our position back amongst the front running teams after finishing third in the Championship in the past two seasons. This has been a great achievement given the resources of those around us.
"Staying where we are will be a challenge in itself, but we are determined to keep improving because only winning will ever be good enough.
"We have a very stable team going into 2016, with Felipe and Valtteri teaming up for a third successive season. They work well together and both have the ideal blend of speed and consistency.
"Our technical team has also remained very consistent which will be to our advantage and we have some of the best engineering minds on the grid at our disposal.
"We have a busy couple of weeks of testing coming up to learn more about our package and to refine the car ahead of the first race.
"We will have to wait until Melbourne to find out exactly where we stand in the pecking order, but I'm confident that our hard work over the winter will stand us in good stead."
The Australian Grand Prix gets the F1 season underway on March 20.