Jean-Eric Vergne remained the man to beat on the second day of the Young Driver Test at Yas Marina, although the Red Bull youngster saw his margin over the chasing pack greatly reduced.
Although there were some technical gremlins which restricted his time on track, Vergne still emerged with the quickest time, albeit slightly slower than he managed on Tuesday.
The Frenchman's best time of 1min 40.188secs was enough to edge out the Ferrari of Jules Bianchi, with his quickest lap being just 0.091secs down on his countryman. While Vergne set his time early on in his programme, Bianchi left it late before posting his quickest lap of the day on what was another busy day for Ferrari – with more than 90 laps logged.
Gary Paffett was third quickest for McLaren despite causing a red flag in the morning session but was more than 1.5secs behind Vergne, while Valtteri Bottas completed his running with Williams by posting the fourth fastest lap.
Bottas now heads to Macau for the F3 Grand Prix and will be replaced by Mirko Bortolotti for the final day as he takes up his price drive for winning the F2 title.
Force India enjoyed another solid day and were once again inside the top six, with Johnny Cecotto Jr fifth fastest on his maiden F1 outing, while Sauber test driver Esteban Gutierrez rounded out the top six position.
Sam Bird was seventh for Mercedes ahead of Renault's Estonian debutant Kevin Korjus, with Luis Razia and Kevin Ceccon rounding out the top ten for Lotus and Toro Rosso.
Jan Charouz was eleventh after running in the morning for HRT, with Charles Pic and Nathanael Berthon rounding out the times; the latter completing a handful of laps ahead of a full day of running on Thursday.
To view Wednesday's testing times, CLICK HERE