The question of how drivers advance to Formula 1 has never been more contentious. In recent weeks, Red Bull's decision to promote 19-year-old Daniil Kvyat to a Toro Rosso seat has led to criticism that he is under-prepared, while newly-crowned GP2 champion Fabio Leimer is likely to find only a third-driver role at best.
While GP2 has a good record of producing grand prix drivers, with half of the current grid graduates, Leimer would be the second successive champion not to make a direct step up after Lotus reserve driver Davide Valsecchi.
Conversely, Formula Renault 3.5 champion Kevin Magnussen has got the nod from McLaren to replace Sergio Perez in a 2014 race seat.
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