Brendon Hartley
Arabadzhiev raced in the 2009–10 season of the GP2 Asia Series, for the Rapax Team, which took over Piquet GP after the first round. He also took part in the main series for the 2010 season, moving to Scuderia Coloni to partner Alberto Valerio. After sixteen races without scoring a point, he was replaced by Brendon Hartley.