Alex Lynn says Felipe Massa will do more work with the radical Williams rear wing on on Wednesday during testing in Barcelona.
Williams ran a striking rear wing on Tuesday morning which featured additional winglets above the normal set-up in an attempt to simulate increased downforce levels. The team explained the wing was being used "to gain a better understanding of the car aero balance over a lap", and development driver Lynn says he had to gain data with it before Massa tests performance.
"It did a lot more than it looked so it’s difficult for me to say," Lynn said when asked if he noticed a difference. "I wasn’t pushing that hard, the only laps I pushed were the end of the morning really on the medium tyre so it was a bit about getting aero scans for it and straight line speed stuff.
"It was a bit of a shame as it looked like it would have given some good downforce, but I wasn’t quite able to do anything on it.
"I didn’t push that hard on it, I wasn’t allowed to. You’ll probably see Felipe do a bit more on it tomorrow. He’ll be the better one to ask tomorrow."
And Lynn was pleased with his own performance on his first outing in the FW38, despite a slightly early finish.
"We finished early but still with loads of laps, we have mainly been engine mileage limited but I think that’s more the good work of the team turning things round in time. I don’t expect much else from a team like Williams.
"I gave a good account of myself considering the runs I was given and what the programme was so hopefully the team will give some good feedback."
REPORT: Vettel tops opening day of Barcelona test
AS IT HAPPENED: Barcelona post-race test - Day 1
Spanish Grand Prix - Quotes of the weekend
DRIVER RATINGS: Spanish Grand Prix
Keep up to date with all the F1 news via Facebook and Twitter
Once again, a sensational Kimi Antonelli delivered when it mattered in Saturday’s Monaco Grand Prix…
Charles Leclerc cut a dejected figure after qualifying for the Monaco Grand Prix, with the…
Lewis Hamilton admitted that a sudden and unexplained change in Ferrari’s behaviour between Friday and…
George Russell struggled to explain his underperformance relative to Mercedes teammate Kimi Antonelli after a…
Saturday's qualifying at the Monaco GP will go down as one of the most tense…
Kimi Antonelli delivered a sensational late lap to secure pole position for the 2026 Monaco…