Williams chief test and support engineer Rod Nelson believes the team are starting to get to grips with the reliability challenge presented by the new 2014 cars.
Felipe Massa stressed the differences in driving the new cars after his first day of running for Williams in Spain.
The new Formula One regulations have produced cars which are more enjoyable to drive, according to Valtteri Bottas.
Williams’ latest F1 car, the FW36, has run for the first time at Jerez.
Aerodynamics will remain a crucial aspect of F1 car design despite the major changes to the engine regulations, says Williams’ chief technical officer Pat Symonds.
Williams have become the second team to reveal the look of their 2014 F1 car – and the first to show off the design of the widely-debated 2014 noses.
Williams have hired two technical staff to join its aerodynamics team from Red Bull and Lotus.
Williams strongly denied claims from driver Pastor Maldonado that his car had been tampered with after his ejection from qualifying in Q1.
Felipe Massa has said one of the teams he is in negotiations with over a 2014 race seat is Williams.
Valtteri Bottas says his team mate Pastor Maldonado risked a collision between the two Williams drivers with his last-lap move at the chicane.