British Formula 3 champion Jack Harvey will make his GP3 debut with Carlin in the upcoming test at Jerez.
Harvey, who was crowned F3 champion in the season finale at Donington earlier this month, joins Formula Renault BARC runner-up Josh Webster and Formula Ford race winner Eric Lichenstein at the team for the test.
Webster will be in action during both days of the test, while Lichenstein will drive on the first day before handing over to Harvey for the second and final day.
The test kicks off on Wednesday at the Spanish circuit.