Kevin Magnussen will drive for McLaren at Formula 1's Young Driver test at Yas Marina later this year as part of an expanded role with the team.
The 19-year-old Dane, whose father Jan made one grand prix start for the squad in 1995, joined McLaren's Driver Development Programme last year, and will start working in its simulator alongside Gary Paffett and Oliver Turvey.
McLaren team principal Martin Whitmarsh said that the timing was perfect to increase the role of Magnussen - who was last year's British F3 runner-up - within the outfit.
"Racing is the core business of McLaren," said team boss Martin Whitmarsh. "By enabling talented drivers to fulfil their potential, our Driver Development Programme is a strategic investment in the future of that business and the sport as a whole.
"We've been delighted by Kevin's progress, aptitude and work ethic thus far. The time was right for him to take the next step and we look forward to helping him gain the experience he requires."
In addition to his McLaren role, Magnussen will compete in Formula Renault 3.5 with Carlin this year.
"I'm really pleased by this new agreement with McLaren," he said. "The team has shown great faith in me so far and I feel that this is an important step in my career.
"F1 is a highly pressured, data-driven environment, and anyone who wants to get there and succeed within it has to master all the technical aspects of the discipline. This is a great opportunity and I look forward to working with the team and playing a part in McLaren Mercedes' future."