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 Bahrai

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

Sir Jackie Stewart is raising funds for Race Against Dementia by selling off the helmet which now carries a signature from seven-time F1 champion Michael Schumacher