Before heading into retirement at the end of last year, Felipe Massa got a sneak peak at Williams' 2018 charger and was impressed by what he saw.
The Grove-based outfit's new car will be the first design overseen by Williams tech boss Paddy Lowe, and according to Massa, the changes compared to his FW40 machine are significant.
"I saw the new car in the wind tunnel and I saw so many changes that look quite interesting," Massa told Motorsport.com.
"Everybody is working. Maybe you get to the first race and everybody has so many different changes and everything in the car.
"The car looks a lot more aggressive. It looks a lot different so I believe maybe they can improve."
In 2017, Williams failed to challenge Force India as the fourth best team on the grid or the 'best of the rest' behind front-runners Mercedes, Ferrari and Red Bull.
With meaningful progress expected from McLaren and Renault this season, Massa believes Williams will face another challenging year.
"You will have Renault that will improve," said the Brazilian.
"You will also have McLaren so we need to see how much it can be this improvement.
"I need to see also what the drivers can do but I believe maybe the team can have a better car compared to what we had until now."
Gallery: The beautiful wives and girlfriends of F1 drivers
Keep up to date with all the F1 news via Facebook and Twitter
Charles Leclerc did not hide his anger after sprint qualifying at the Chinese Grand Prix,…
Max Verstappen did not bother to sugarcoat his performance after sprint qualifying for the Chinese…
There was a sense of bafflement lingering in the Shanghai paddock after Sprint qualifying for…
Flavio Briatore has confirmed that Mercedes is among several parties interested in buying a minority…
George Russell secured pole position for the Sprint race at the Chinese Grand Prix, heading…
Full results from Sprint qualifying for the Chinese Grand Prix at Shanghai, round 2 of…