The helmet, signed by every living world champion, will raise funds for Sir Jackie Stewart’s Race Against Dementia charity

Formula 1 champion Jackie Stewart wore a helmet bearing the signature of all living Formula 1 champions including Michael Schumacher as he drove one of his title-winning cars for charity at the Bahrain Grand Prix on Sunday.

Helped by is wife, Michael Schumacher has signed a crash helmet that will auctioned off for charity. The F1 legend, who suffered a devastating head injury in a ski accident 12 years ago, wrote his initials,