Jolyon Palmer will make his first appearance for Lotus during this week's pre-season test in Spain.
The reigning GP2 champion joined the team as their third driver earlier this year, with the deal including a 'significant number' of Friday practice sessions over the course of the season.
Palmer's first taste of the Mercedes-powered E23 will come this week however, with the Briton set to drive on the second day in Barcelona.
Lotus's 2015 regulars Pastor Maldonado and Romain Grosjean will be behind the wheel on the other three days, with Maldonado on duty on the first and third days and Grosjean completing the work on Sunday, the fourth and final day.
Alongside Palmer, Susie Wolff will drive on the first day of the test for Williams as part of her expanded official test driver role.

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