Stoffel Vandoorne believes McLaren have made significant progress since the last time he drove the car in Bahrain – when he replaced an injured Fernando Alonso and scored the team's first point of the season.
The Belgian got behind the wheel again on Wednesday during the final day of the first in-season test and came away satisfied with McLaren's progress.
"The car felt good straight away today," said Vandoorne. "Of course, I had a few laps of adjusting to the car, but it definitely has progressed since I raced it in Bahrain. It’s been a positive and productive day.
"Although it’s easier to get into the car having experienced a full race weekend, there is always a need to readjust for F1, especially after racing in Super Formula, but I quickly got used to it.
"The car feels better in every area, with downforce feeling much improved compared to Bahrain."
Vandoorne finished second fastest and racked up an impressive 108 trouble-free laps for the team.
"As a racing driver, you want to spend as much time as possible in the car, but I try and optimise every moment I have, and I feel like I’ve had the chance to do that today.
"All in all, the progress with the car is good, so I’m happy."