Edoardo Mortara will move back into Formula 3 this year as a Volkswagen driver in the Euro Series.
The 23-year-old Swiss-born Italian raced in GP2 last year with Arden and, despite winning at the season opener at Barcelona, had a disappointing year and finished just 14th in the standings.
He returned to F3 to win the Macau Grand Prix with Signature last year and will remain with the team for the 2010 season.
He will join German F3 champion Laurens Vanthoor and Marco Wittmann, who switches from Mucke Motorsport, at the French outfit, which uses VW engines.
Mortara finished runner-up to Williams F1 racer Nico Hulkenberg in the 2008 Euro Series.