Mercedes brought new chassis and power unit components to test in Spain, with the team hopeful they can be introduced over the next few races.
Fresh from their fifth consecutive one-two finish of the season, the Silver Arrows were back on track with Valtteri Bottas on the first day of testing at the Circuit de Catalunya.
And it was yet another P1 for Mercedes as Bottas got to within a tenth of his pole lap record and finished top of the timesheet.
“Today’s test day has been really good,” Bottas said.
“We completed a lot of laps and learned a lot. Our programme focused on the tyres and setup. We collected lots of data over the race weekend in similar conditions to what we had today in terms of temperature and wind, so it was nice to do some setup comparisons.
“There were some new mechanical test items on the car too which were interesting to try out.
“Everyone did a really good job after a long weekend, so it’s been another successful day.”
Mercedes chief race engineer, Andrew Shovlin, revealed that Bottas had been testing new developments on both chassis and the power unit. Gulp.
“We’ve had a trouble free day with Valtteri and got through most of the programme,” Shovlin added.
“The number of test days is so limited now that you always end up with a very busy programme and it’s important that everything arrives on time with it being our last chance to test this season.
“We’ve had a number of developments on the chassis and Power Unit side which we can hopefully bring to the race car over the next few races. We’ve also done some work on setup for the softer compounds that will be appearing in Monaco and Montreal, along with some longer run work.
“We have Nikita in the car tomorrow, he’s worked with us over the past few months but this will be his first run in the W10 and we have a busy day of testing lined up for him.”