From the outside looking in, it must appear for all the world as if Romain Grosjean has taken leave of his senses.
After all, why would a proven podium finisher, a driver with four years of Formula 1 experience under his belt, want to gamble with his career and sign for a start-up team?
From his early crash-happy days that almost resulted in him heading for the F1 exit door after just one season, Grosjean has turned his life around, both on and off-track.