Kevin Magnussen was the pacesetter for McLaren on the first day of the Young Driver Test at Silverstone.
The Dane, who completed 100 laps over the course of the day, set a time of 1.33.602 in the final half hour of the session to go fastest of all in the MP4-28.
James Calado and Antonio Felix Da Costa had been the early pacesetters in the morning, testing for Force India and Red Bull respectively.
Calado, who handed over the reins of the VJM06 to Paul di Resta for the afternoon remained at the top of the field for a large part of the day, with only three drivers bettering his time from the morning of 1.33.986.
Di Resta, who ran under a plan provided by Pirelli which focused on the new tyre compounds that the Italian manufacturer aims to introduce for the Hungarian Grand Prix would end up second fastest, just 0.172s shy of Magnussen.
Da Costa, who ran the whole first day of the test after Red Bull changed their scheduled line-up, set the third fastest time, just 0.047s of a second shy of Paul di Resta. Daniel Ricciardo had been scheduled to complete the afternoon session for the World Champions as they look to assess him for a 2014 race seat, but this has been delayed until Thursday afternoon.
Daniel Juncadella completed 55 laps for Williams and finished the day fifth fastest. While Johnny Cecotto Junior finished sixth for Toro Rosso, Robin Frijns was seventh for Sauber ahead of Nicolas Prost in the Lotus and Davide Rigon in the Ferrari.
Alexander Rossi ended the day tenth fastest for Caterham with a time of 1.35.651, with Tio Ellinas in the Marussia a second down on the American. Ellinas made history today as he became the first Cypriot to take part in an official Formula One test session.
Max Chilton propped up the table, completing just 27 laps after suffering from a KERS problem after taking over at the wheel of the Marussia from Ellinas in the afternoon.
All of the teams except Ferrari will run different drivers for the second day of the Young Driver Test.
Young Driver Test – Day 1 – Final Times
1. Kevin Magnussen, McLaren, 1:33.602, 100 laps
2. Paul di Resta, Force India, 1:33.774, 58 laps
3. Antonio Felix da Costa, Red Bull, 1:33.821, 82 laps
4. James Calado, Force India, 1:33.986, 27 laps
5. Daniel Juncadella, Williams, 1:34.098, 55 laps
6. Johnny Cecotto, Toro Rosso, 1:34.193, 75 laps
7. Robin Frijns, Sauber, 1:34.236, 72 laps
8. Nicolas Prost, Lotus, 1:34.810, 72 laps
9. Davide Rigon, Ferrari, 1:34.874, 76 laps
10. Alexander Rossi, Caterham, 1:35.651, 69 laps
11. Tio Ellinas, Marussia, 1:36.676, 36 laps
12. Max Chilton, Marussia, 1:38.347, 27 laps
Images courtesy of Octane Photographic.