Sebastian Vettel's days of racing Formula 1 cars may be over, but that doesn't mean he has said goodbye to the sport for good.
With four world championships and 53 race wins to his name, Vettel has nothing left to prove in F1. More importantly, the German has come to realise that he has a number of other priorities in his life which are no longer compatible with a career jetting across the globe.
But, as plenty of great racers before him have shown, the itch remains. Fernando Alonso, Kimi Raikkonen and Michael Schumacher are among the sport's recent champions who have returned to F1 after initially stepping away.