"We've had Valtteri in the car today and have had another very useful day of testing, with the car running faultlessly throughout" explained Trackside Engineering Director, Andrew Shovlin.
"We had a fairly similar programme to Lewis, using the early part of the day to do a number of the aerodynamic test items, then getting into a programme of short run work before lunch and longer runs in the afternoon.
"There were a few cars that stopped on track in the afternoon causing red flags, which does impact on your plans.
"But, we have been able to complete almost all the important work we had planned and have made some good progress in further understanding the car and tyres.
"We have a very busy few days coming up, finishing our analysis from the race and test and getting stuck into preparations for Monaco to ensure we are ready for its unique challenges."