Hamilton boosted by "one of the most positive days" for Mercedes

Again, nothing was attempted to explore the limits of Pirelli's most versatile mixes – this is scheduled for Friday – the new car has traveled many miles, Hamilton performing 85 laps in the morning and 96 the Valtteri Bottas. The Brackley team was also able to solve graining problems that proved problematic earlier in the week.

"It's been a good day," said Hamilton. "A lot of mileage, which is great for us. It was probably one of the most positive days for us. We really learned a lot.

"We were able to apply our teachings from morning to afternoon, so I can not wait to see how Valtteri felt, but the car seemed like it was in a better place. Our understanding of the W10 continues to grow, so it was definitely a positive day. "

Bottas, who criticized the car's behavior during the first week, said progress had been made, but it was impossible to gauge the team's position relative to its rivals in the title.

"We have a lot of tricks today, which is always good," Bottas said. "I did a race simulation that was interrupted by the red flag, but that confirms the progress we've made since last week.

"We are preparing more and more for Melbourne, but there is still some progress to be made and some questions about our position in relation to the competition."

Bottas added, "We have to maximize the final day of testing as this will be our last chance to try a few tries before Melbourne."

Technical director James Allison, who clearly expressed his frustration yesterday over graining, said tires were not a problem today.

"Today's day has been very productive," he said. "On either side of a race distance without problems, we have done many research work and in the race simulation itself, unlike yesterday where we do not have a problem. We did not manage to make the tires live, we had a good behavior of the tires during the three relays.

"We look forward to tomorrow where we will study the tire compound lineup and we will focus more on the pace of a ride."