Click here for full Wednesday test results from Circuit de Catalunya
Max Verstappen has held on to top spot at the Circuit de Catalunya on the second day of the first in-season F1 test to cap a brilliant few days for the teenager.
Having claimed victory in the Spanish Grand Prix to become the youngest race winner in F1 history, Verstappen returned to action in the Red Bull with an extensive testing programme. It was an ideal opportunity for the 18-year-old to adapt to his new surroundings after switching into the Red Bull squad last week.
Verstappen duly delivered notching up over a century of laps and holding the fastest time for the day on soft tyres with a 1m 23.267s.
With the timesheet largely steering away from any competitive times compared to what was produced during qualifying Spanish Grand Prix, it was a day of long runs and extensive data logging throughout the F1 grid.
Stoffel Vandoorne backed up Jenson Button's gains yesterday in the McLaren by taking second on the timesheet having only used the softs but was almost three-quarters of a second off Verstappen.
Mercedes made a last-minute driver switch with Pascal Wehrlein stepping in for driving duties instead of Esteban Ocon, with the German manufacturer citing the need for a more experience driver to run its extensive programme. The German claimed third overall having stuck to the softs and mediums.
Esteban Gutierrez enjoyed an impressive day in the Haas ending fourth overall with over a 100 laps banked for the American squad. He pipped Daniil Kvyat in the Toro Rosso after the Russian, also familiarising himself with a new car, caused a red flag in the final hour after his car suffered an engine failure.
Alfonso Celis Jr, returning for a second day in the Force India, also produced useful laps to help the develop the VJM09 whilst gaining valuable experience in the car – finishing the day in sixth with a best time of 1m 25.016s on the super-softs.
At Renault, Kevin Magnussen experimented with the manufacturer's new B-spec engine configuration with the hope of developing it in time for Monaco next week.
Ferrari academy driver Antonio Fuoco enjoyed a solid debut in the SF16-H running set-up, engine mapping and rear wing work as well as a qualifying simulation with one eye on gains for Monaco.
Williams continued to run its radical double rear wing with Felipe Massa. The wing would be illegal under current technical regulations but could be a consideration for the 2017 rule changes.
Jordan King in the Manor enjoyed a solid day of running despite a small hiccup in the morning session when he ran off track at turn seven but was able to continue back to the pits. The session had to be briefly red flagged to clear the debris from his excursion off of the track but the Manor driver completed a full programme having not suffered any damage.