Felix got his first taste of the Vallelunga circuit on Friday, as work ahead of the penultimate FIA Formula 3 European Championship round of the year got underway with six hours of testing at the Italian venue.
The day started off on a damp but drying tack, with Mücke Motorsport dedicating pre-lunch work to the task of establishing a baseline set-up from which to make further progress.
The best times of the day were set almost exclusively in the afternoon, with Felix eventually ending up tenth overall - 0.603s adrift of pace-setting championship rival and home favourite Raffaele Marciello (Prema Powerteam). The day came to a busy end when the majority of drivers went out for some late new-tyre runs, only to be held back by a sequence of red and yellow flags that made times difficult to read.
Felix spent the duration of the day gradually adapting to the circuit, and trying out various set-ups for the remainder of the weekend. The other three Mücke Motorsport drivers - Michael Lewis, Roy Nissany and Mitch Gilbert - were 18th, 22nd and 23rd respectively on the combined list.
On the list charting each driver's ideal lap time - putting their fastest sector times together to produce a theoretical best - Felix was sixth, 4.5 tenths off Marciello.
"I think it's been an OK day; nothing spectacular, but a lot of important work completed," Felix said. "We have been trying out a range of different set-ups, and I think the circuit is interesting - and quite difficult. Testing is always testing and it's hard to say where we really are at the moment, but we've certainly got a lot of data to analyse this evening - and we know that we still have a lot of work to do. The Prema guys look really strong here, as we expected on their home track, but I'm confident that we can find some more performance overnight. I'm looking forward to getting back out on track tomorrow."
Saturday sees FIA Formula 3 European Championship activity get serious at Vallelunga, with two 30-minute free practice sessions in the morning followed by qualifying and the first of the weekend's three races.