Harry Tincknell became the fourth different Cooper Tires British Formula 3 International Series driver to top an official test day from as many days of pre-season running.
The Exeter-based driver posted the fastest time on the second day of the Rockingham test, leading another top five lockout by the Carlin team.
Tincknell improved on teammate Jack Harvey's benchmark from Tuesday by two tenths to top the timesheets in the second of the morning sessions. He was also quickest in the day's final session, with Harvey and Jazeman Jaafar ending the other two sessions ahead.
Harvey's best time made him the second fastest driver of the day, 0.46 seconds shy of Tincknell. Carlos Sainz Jr pipped Jaafar to third place, with the team's final driver Pietro Fantin taking fifth.
Reigning Formula Renault UK champion Alex Lynn was again the best of the rest in P6 for Fortec. Despite the current gap to Carlin, he is in confident mood.
“It's always good to be the fastest in your team,” said Lynn, “and it was a good two days of testing overall. We are very close to the front-runners' pace.
“We are not out to try to break lap records at the moment – we are working hard to get a good understanding of the new car before we try that. The Carlin drivers are clearly five quick guys who are pushing each other on, but I'm confident that come the first round we will be quicker than them.”
After it made a promising debut on track yesterday, the new Nissan power unit in T-Sport's car finished the day in seventh place with driver Nick McBride, and the Australian was only just over a tenth away from beating Lynn to be the best of the non-Volkswagen runners.
McBride's teammate and compatriot Spike Goddard was again the best in the National class.
Leading International class runners am / pm (quickest time in bold)
1 Harry TINCKNELL / GBR, Carlin Dallara-Volkswagen 1:16.810 / 1:16.837
2 Jack HARVEY / GBR, Carlin Dallara-Volkswagen 1:16.856 / 1:17.310
3 Carlos SAINZ / ESP, Carlin Dallara-Volkswagen 1:16.980 / 1:16.904
4 Jazeman JAAFAR / MAS, Carlin Dallara-Volkswagen 1:17.134 / 1:16.918
5 Pietro FANTIN / BRA, Carlin Dallara-Volkswagen 1:17.553 / 1:17.368
6 Alex LYNN / GBR, Fortec Dallara-Mercedes 1:17.753 / 1:17.613
7 Nick McBRIDE / AUS, T-Sport Dallara-Nissan 1:18.528 / 1:17.727
8 Hannes VAN ASSELDONK / NED, Fortec Dallara-Mercedes 1:17.915 / 1:18.570
9 Felix SERRALLES / PUR, Fortec Dallara-Mercedes 1:18.241 / 1:18.107
10 Pipo DERANI / BRA, Fortec Dallara-Mercedes 1:18.442 / 18.590
1 Spike GODDARD / AUS, T-Sport Dallara-Mugen Honda 1:19.361 / 1:20.534
2 Duvashen PADAYACHEE / AUS, Double R Dallara-Mugen Honda 1:20.423 / 1:20.834