Rosberg won the 2005 GP2 Series for the ART team, having raced in Formula 3 Euro Series previously for his father's racing organisation Team Rosberg.
Rosberg fitoi 2005 GP2 Series me skuadrën ART, duke garuar më parë Formula 3 Euro Series me skuadrën e babait të tij Keke Rosberg, Team Rosberg.