Romain Grosjean says he is very pleased with the progress being made with the new Haas VF-16 as he gave a small glimpse of the car's performance by setting the second fastest time of the day in F1 testing.
Having given the car its full track debut on Monday, Grosjean enjoyed a more productive day in terms of mileage, shrugging off minor niggles on the Ferrari-powered car after lunchtime to notch up a solid 82 laps.
With Haas working on some set-up changes to assess how the car reacts, Grosjean was given the chance to stretch the VF-16's legs late on with a run on soft tyres, with the Frenchman lifting himself up to a fine second fastest.
Indeed, Grosjean says he enjoyed his day in the car, not least the way it is feeling like a rounded package, even if he maintains there is still much work to be completed.
“The idea was to go over 100 laps today, we didn't quite manage that because we lost a little bit of after lunchtime to repair some parts and we had a small glitch with the software but generally we have made some setup changes on the car to understand how it is working in terms of aero and mechanical.
“Everyone is quite happy with how it reacts and the way it goes in a good direction. The first impressions, which were good in the car, are still there, I enjoyed driving it. We have a lot of room for improvement and a lot of areas, but the guys are doing a good job of learning as we go. It was a positive day.
Reflecting on the rapid end of day lap time, Grosjean admits he was surprised to be up towards the front.
“I didn't even expect that [to be second]. We ran all day on medium and then we put two set of new softs to assess where the tyres are, so that was interesting. The main thing is to put mileage in the car, there are a lot of new parts that we need to see how they are going. There have been two big setup changes on the car that worked well, it was a good direction in terms of engineering and driving.”