- Productive Friday at Spa-Francorchamps, where Carlos set the eighth fastest time (1:45.481) and clocked 29 laps in the afternoon session, plus 19 in the morning one.
- The Spaniard tested the brand new floor of the Renault R.S.18, which already produced good results.
- He worked on medium tyres, on which he clocked two stints of seven and 11 laps, and on the supersofts, on which he put together two runs of three and eight laps.
"It’s great to get back into the car relaxed and refreshed. It was an uncomplicated day and we managed to follow our program quite well. The team brought some new parts that seem to work as expected, especially the new floor, which I tested in FP2. Good progress was made through the day. Spa-Francorchamps is a superb circuit so it’s great to get any laps around here and I have good feelings for the weekend ahead. Now it’s time to analyse both sessions and look for more performance with my engineers".